Document:

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                                                                   EXHIBIT 10.11

                                      LEASE

                                     BETWEEN

                             TRIPLE T BRENTWOOD LLC

                                   AS LANDLORD

                                       AND

                             PRIVATE BUSINESS, INC.

                                    AS TENANT

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                             BASIC LEASE INFORMATION

LEASE DATE:

LANDLORD:           Triple T Brentwood LLC
                    a Delaware limited liability company

ADDRESS OF
LANDLORD
FOR NOTICES
(SECTION 27):       Triple T Brentwood LLC
                    c/o The Travelers Insurance Company
                    215 Lennon Lane, Suite 201
                    Walnut Creek, California  94598
                    Attention:  Guy R. McComb,
                                Vice President

                              and

                    The Travelers Insurance Company
                    One Tower Square
                    Hartford, Connecticut 06183-2030
                    Attention:  Travelers Investment Group, 9PB
                                Regional Counsel

                             and

                    Loeb & Loeb LLP
                    1000 Wilshire Boulevard, Suite 1800
                    Los Angeles, California  90017
                    Attention:  Susan V. Noonoo, Esq.

TENANT:             Private Business, Inc.,
                    a Tennessee corporation

ADDRESS OF TENANT
  FOR NOTICES
  (SECTION 27):

TYPE/NATURE OF TENANT'S BUSINESS:  General Business

PERMITTED USE OF PREMISES (SECTION 5):  General office use

PREMISES (SECTION 1): Approximately 54,643 rentable square feet consisting of
the entire 4th floor and 3rd floors as shown on Exhibit "A"

PARKING RIGHTS (SECTION 1): 4.96 surface parking spaces per 1,000 usable square
feet in the area designated on Exhibit "B"

LEASE TERM (SECTION 2):  10 years

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BASE RENT (SECTION 3):  Years 1 through 4:     $18.85 per rentable square foot
                        Years 5 through 8:     $19.85 per rentable square foot
                        Years 9 and 10:        $20.85 per rentable square foot

PREPAID RENT (SECTION 3): N/A

SECURITY DEPOSIT (SECTION 3):  $1,000,000

TENANT'S PROPORTIONATE SHARE OF INCREASES IN DIRECT COSTS (SECTION 4): rentable
area of Premises divided by rentable area of Building: 52.13%

LANDLORD'S BROKER (SECTION 35):  The Trammell Crow Company

TENANT'S BROKER (SECTION 35): The Trammell Crow Company

GUARANTOR (SECTION 38.19):  N/A

RENTABLE AREA OF BUILDING:  104,825 rentable square feet

ADDITIONAL PROVISIONS: See Addendum attached hereto and hereby made a part
hereof

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                                      LEASE

         THIS LEASE ("Lease") is entered into as of the date specified in the
Basic Lease Information (as defined in Section 1 below) between Triple T
Brentwood LLC, a Delaware limited liability company ("Landlord"), and the tenant
specified in the Basic Lease Information ("Tenant"), upon the following terms
and conditions:

         1.       PREMISES; COMMON AREAS; PARKING; BASIC LEASE INFORMATION.

                  1.1      Landlord hereby leases to Tenant and Tenant hereby
leases from Landlord, upon the terms and conditions set forth in this Lease,
those certain premises (the "Premises") described in the Basic Lease
Information and designated in Exhibit "A" attached hereto and hereby made a
part hereof. The Premises are or shall be situated in a four (4) story office
building (the "Building") located at Overlook Park, Brentwood, Tennessee. The
real property upon which the Building is located consists of (a) approximately
8.06 acres, more or less, designated as Lots 13, 10-C, 10E and 10-F on the
Preliminary and Final Plat Resubdivision of Lots 10-A, 10-B and 10-D on the
Final Plat of the Resubdivision of Lots 1, 3, 6, 7, 9 and 10 of Overlook Park,
as of record in Plat Book 23, page 98, Register's Office for Williamson County,
Tennessee (the "Official Records") and (b) that certain adjacent tract of land
consisting of approximately 11,000 square feet, more or less, and being shown
on the tax rolls for Williamson County, Tennessee as Map 11-F, Group "A,",
Parcel A, (collectively, the "Property"). The Property, together with the
Building and all related improvements, facilities and appurtenances, shall
hereinafter be collectively referred to as the "Project." The terms and
conditions of this Lease shall include, without limitation, the Basic Lease
Information; provided, however, as to any inconsistence between the terms of
this Lease and the terms of the Basic Lease Information, the terms of this
Lease shall control.

         As used in the Basic Lease Information and elsewhere in this Lease, the
term "rentable square feet" and similar variations thereof shall have the
meaning set forth below:

                  1.1.1    In the case of a single tenancy floor, all floor
areas measured from the predominate feature of the Building (i.e., the inside
surface of the outer glass or finished column walls of the Building) to the
inside surface of the opposite wall excluding only the areas within the outside
walls used for elevator, mechanical rooms, Building stairs, elevators shafts,
flues, vents and other vertical ducts, plus an allocation of the square footage
of the Building's Common Areas as defined in Section 1.2 below.

                  1.1.2    In the case of a multi-tenant floor, all floor areas
measured from the predominate feature of the Building (i.e., the inside surface
of the outer glass or finished column walls of the tenant occupied portion of
the floor) measured to the mid point of the walls separating the areas leased by
or held for lease to other tenants or from floor areas devoted to corridors,
elevator foyers, rest room mechanical rooms, vending areas or other similar
facilities for the use of all tenants on a particular floor, but including a
proportionate part of the foregoing floor specific common areas located on such
floor, plus an allocation of the square footage of the Common Areas as defined
in Section 1.2 below.

                  1.1.3    The rentable square footage in the Premises
calculated on the basis of the foregoing definitions is estimated to be 54,643
as shown on the Basic Lease Information. Landlord and Tenant agree that the
actual rentable square footage shall be determined by Landlord's architect on
the basis of the final Plans and Specifications for the Premises as
constructed. If the actual rentable square footage in the Premises differs from
the estimated rentable square footage as set forth above, then the rentable
square footage in the Premises shall be changed to conform to the actual
rentable square footage in the Premises. Upon Substantial Completion (as
defined in Section 2.1 below), Landlord and Tenant both agree to execute a
certificate evidencing the exact number of rentable square feet contained in
the Premises when such figure is accurate determinable.

                  1.1.4    In the event the estimated rentable square footage is
changed to conform to actual square footage in accordance with the foregoing
paragraph, Base Rent, as defined in Section 3, shall be adjusted to reflect the
actual rentable square feet in the Premises and all such determinations shall be
governed by BOMA standards to the extent inconsistent with the

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preceding requirements and the allocation of square footage for common areas for
both single tenant floors and multi-tenant floors, as applicable from time to
time, all in accordance with BOMA's standards.

                  Each reference in this Lease to any of the Basic Lease
Information shall be construed to incorporate, in addition to the Basic Lease
Information, the terms and conditions set forth in the particular Lease section
in which such reference is made.

                  1.2      The term "common areas" as used in this Lease shall
mean all areas and facilities around the Premises and within the exterior
boundaries of the Property which are provided and designated from time to time
by Landlord for the general use and convenience of Tenant and other tenants of
the Project and their respective employees, invitees or other visitors. Common
areas include, without limitation, the lobby area, walkways, parking
facilities, landscaped areas, sidewalks, driveways, service quarters, hallways,
restrooms (if not part of the Premises), stairways, elevators (except elevators
which may be reserved for the exclusive use of one or more other tenants),
walls, fire stairs, telephone and electric closets, aisles, truck docks,
plazas, service areas, lobbies and all other common and service areas of the
Property and Building or any other area of the Project intended for such use.
Floors wholly occupied by Tenant shall not have any facilities which would be
used in common with other tenants, except for fire stairs, shafts and similar
installations. Tenant, its employees and invitees shall have the nonexclusive
right to use the common areas along with others entitled to use same, subject
to Landlord's rights and duties as hereinafter set forth and subject to the
other provisions of this Lease. Without Tenant's consent and without liability
to Tenant, and provided that Landlord uses reasonable efforts to minimize the
duration and extent of any resultant interference with Tenant's use of and
access to the Premises, Landlord may do the following:

                  1.2.1    Establish and enforce reasonable rules and
regulations concerning the maintenance, management, use and operation of the
common areas;

                  1.2.2    Close off any of the common areas to whatever extent
required in the reasonable opinion of Landlord and its counsel to prevent a
dedication of any of the common areas or the accrual of any rights by any person
or the public to the common areas; provided, however, that any such closure of
the common areas shall not materially adversely effect Tenant's use of the
Premises;

                  1.2.3    Close any of the common areas for maintenance,
alteration or improvement purposes areas; provided, however, that any such
closure of the common areas shall not materially adversely effect Tenant's use
of the Premises;

                  1.2.4    Select, appoint and/or contract with any person for
the purpose of operating and maintaining the common areas; and

                  1.2.5    Change the size, use, shape or nature of any of the
common areas.

                  1.3      Tenant shall have the right, so long as this Lease
remains in full force and effect, and subject to applicable rules and
regulations, to use the parking spaces designated on Exhibit "B" in the surface
parking lot which forms a part of the Project (the "Parking Lot"), upon such
terms and conditions as may be specified in the Basic Lease Information.
Landlord and Tenant acknowledge and agree that Exhibit "B" provides for a
minimum of 271 surface parking lot spaces which shall be available to the
Tenant at all times during the initial term of this Lease without charge. Such
minimum number of parking spaces shall be based upon the ratio of parking
spaces per thousand rentable square feet specified in the Basic Lease
Information and subject to increase if and when the Tenant occupies additional
rentable square feet in the Premises (said number of parking spaces as adjusted
from time to time herein the "Minimum Parking Spaces"). No other tenant of the
Building shall be afforded a more generous parking to rentable square footage
ratio than Tenant.

                  Tenant acknowledges and agrees that its rights to such Minimum
Parking Spaces, as adjusted from time to time, shall not be exclusive but shall
be shared in common with other tenants in the Building and their respective
invitees, visitors , customers and the general public. Except for designation of
a mutually acceptable number of spaces as being reserved for visitors, there
shall not be any spaces specifically reserved for Landlord's exclusive use or
for the

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exclusive use of any other tenant of the Building.

                  To insure that Tenant's access to the Minimum Parking Spaces
remains available under all circumstances, Landlord acknowledges and agrees
that Landlord may be required, either by Tenant or by other tenants of the
building, to institute a cost-efficient procedure to control access to the
Parking Lot (e.g., gates or other means of ingress and egress control);
provided, however that Landlord shall not be required to install such access
control system until Substantial Completion of the Premises has occurred. The
reasonable cost and expenses of installing and maintaining such access control
system, if installed, shall be included as a part of Direct Costs of operating
the Building. Unless and until an access control system is installed, Landlord
shall not be permitted to charge Tenant or its invitees, visitors or customers
for use and access to the Minimum Parking Spaces or any excess spaces as may
ultimately be or become available after construction of the Building. After
installation of an access control system, Landlord may charge for spaces used
by Tenant in excess of the Minimum Parking Spaces, provided that revenue from
such charges shall be used to defray costs of the access control system thereby
reducing Direct Costs and provided further that such charges shall be borne
equably by all tenants in the Building.

                  If and to the extent necessary to satisfy Landlord's
obligations under this Section 1.3, Landlord shall have the right to rearrange,
relocate or to close temporarily parking spaces and improvements in the Parking
Lot for thepurpose of maintaining, restoring, repairing, altering and improving
the same, as Landlord in Landlord's reasonable discretion may determine. If
Landlord closes all or any portion of the Parking Lot or relocates Tenant's
parking spaces, Landlord will use its best efforts to provide Tenant with
alternative parking arrangements not less convenient than the arrangements
Tenant previously enjoyed.

         2.       TERM AND POSSESSION. 2.1 The term of this Lease shall
commence on the date (the "Commencement Date") which is the earlier of (a) the
date on which Landlord achieves Substantial Completion or (b) March 31, 2000,
provided that Landlord has achieved Substantial Completion, or would have
achieved Substantial Completion but for Tenant Delay or Force Majeure. In no
event shall the Commencement Date be prior to February 1, 2000 nor later than
March 31, 2000, subject, however, to delays caused by Force Majeure (as
hereinafter defined) and Tenant Delay (as hereinafter defined).

                  For purposes of the preceding provisions, the Premises shall
be substantially completed and "Substantial Completion" shall have occurred on
the last to occur of the following: (1) the Landlord's obtaining a temporary or
permanent Certificate Of Use And Occupancy (or equivalent) permitting the full
use and occupancy of the Premises by Tenant as contemplated by Section 5, (2)
building fire alarms, fire sprinklers, smoke detectors, exit lights, life safety
equipment and other building code requirements having been installed and being
operational, (3) the mechanical, electrical and plumbing services serving the
Premises having been installed and in good working order and access to the
Premises is available, (4) the Tenant Improvements (as hereinafter defined)
being substantially completed as evidence by a written certification by the
architect designing such improvements subject, however, to Punch List items (as
hereinafter defined), so as to enable Tenant to move in and install its
furniture, fixtures, equipment and machinery, and (5) the Parking Lot being
accessible and useable by Tenant as set forth in Section 1.3 above. If and to
the extent compliance with the conditions set forth above would have occurred
earlier but for Tenant Delay, then compliance with such conditions shall be
deemed to have occurred on the day on which it would have occurred but for such
Tenant Delay (i.e., Substantial Completion would be accelerated on a day-for-day
basis for each day of Tenant Delay).

                  For the purposes of the foregoing, the term "Tenant Delay"
shall mean any delay in achieving Substantial Completion as a direct result of
the following: (1) Tenant's failure to furnish any required information,
documents or approvals within specified time periods in accordance with the Work
Agreement to the extent such failure causes delay, (2) any change orders
including any change in the construction documents relative to Tenant
Improvements to the extent such change orders cause delay, or (3) any delay
caused by interference or hindrance by the Tenant's employees or the agents with
the contractor's prosecuting of the Tenant

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Improvements to the extent such interference or hindrance causes delay.

                  For purposes of the foregoing, the term "Force Majeure" shall
be deemed to refer to strikes, lockouts, labor controversies, fuel shortages,
accidents,acts of God, and/or the elements or any other causes beyond the
reasonable control of Landlord, so long as Landlord has taken reasonable steps
to minimize the effect of such Force Majeure.

                  In the event the Commencement Date has not occurred by March
31, 2000; subject, however, to delays occasioned by Force Majeure and Tenant
Delay, then Landlord shall reimburse Tenant for all of direct cost, loss, and
expense incurred by Tenant due to such delay as may result from payments of
holdover rent in excess of the applicable base rent. Tenant shall provide to
Landlord an itemized accounting of all such costs and expenses claimed by Tenant
against Landlord, together with such supporting documentation as Landlord may
reasonably require to verify such items. Landlord shall reimburse Tenant for all
such costs and expenses within fifteen (15) business days of receipt of such
accounting. Notwithstanding the foregoing and in addition to such remedy, the
Tenant shall have the absolute right, without any further liability or
obligation to Landlord, by written notice to terminate this Lease in the event
the Commencement Date has not occurred by July 1, 2000, subject, however, to the
effects of Force Majeure and Tenant Delay.

                  The term of the Lease shall continue for the balance of the
month in which the Commencement Date occurs (if the Commencement Date occurs on
other than the first day of any calendar month) and thereafter for the number of
whole years and months specified in the Basic Lease Information, unless sooner
terminated pursuant to any provision hereof. The parties hereto shall execute a
written statement in the form of Exhibit "C" attached hereto and made a part
hereof setting forth the Commencement Date and the date of expiration of this
Lease promptly after same have been ascertained, but the enforceability of this
Lease shall not be affected should either party fail or refuse to execute such
statement. If permission is given to Tenant, in Landlord's sole discretion, to
enter or occupy the Premises prior to the Commencement Date, such early entrance
or occupancy shall be subject to all the terms of such permission and all the
provisions of this Lease (other than payment of Base Rent or other rental) which
could be reasonably and logically construed as applying thereto.

                  2.2      Subject to Landlord's completion of the base building
improvements described in Exhibit "D" attached hereto (together with the floor
plans and Building elevations included in Exhibit "D", the "Base Building
Improvements") and the tenant improvements described in the Work Agreement (as
hereinafter defined) so that the Project has reached Substantial Completion,
subject to any remaining Punch List items (as hereinafter defined), Tenant shall
accept the Premises in its "as-is condition".

         3.       BASE RENT; SECURITY DEPOSIT.

                  3.1      Tenant shall pay to Landlord as base rent ("Base
Rent") for the Premises, without prior notice or demand, throughout the term of
this Lease, the amount(s) so specified in the Basic Lease Information
applicable to the period(s) specified therein, in advance, in equal monthly
installments, on or before the first day of each and every calendar month
during the term hereof. Base Rent and any other rent due under this Lease for
any period during the term hereof which is for less than one (1) month shall be
a prorated portion of the monthly amount due, based upon a thirty (30) day
month. Rent and all other amounts due to Landlord shall be paid to Landlord,
without deduction, offset or abatement, except as may otherwise be expressly
set forth in this Lease, at Landlord's address as specified in the Basic Lease
Information or to such other firm or at such other place as Landlord may from
time to time designate in writing. Landlord shall have the right to accept all
rent and other payments, whether full or partial, and to negotiate checks in
payment thereof without any waiver of rights, irrespective of any conditions to
the contrary sought to be imposed by Tenant. Rent hereunder shall be deemed
paid to Landlord when received by Landlord, or its designee, at Landlord's
address, or at such other address as Landlord shall have designated.

                  3.2      Within five (5) business days of the Commencement
Date, Tenant shall pay to Landlord a security deposit in the amount specified
in the Basic Lease Information for the faithful performance of all terms,
covenants and conditions of this Lease. The security deposit shall be in the
form of cash or a letter of credit in the face amount of $1,000,000, which
letter of

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credit shall be in form and substance and issued by a financial institution
satisfactory to Landlord. Provided that no material default specified in Section
19 then exists under this Lease, commencing on the first anniversary of the
Commencement Date and continuing annually on each anniversary date thereafter
throughout the term of this Lease, Tenant's security deposit shall be reduced in
equal proportions over the remaining initial ten (10) year term of the Lease
until such deposit has been released in full. The amount of each such reduction
shall be paid to Tenant by Landlord within five (5) business days of each
anniversary if a security deposit is cash. If Tenant's security deposit is in
the form of a letter of credit, upon Tenant's delivery to Landlord of
replacement letters of credit (in form and substance, and issued by a financial
institution satisfactory to Landlord, in the applicable reduced amounts,
Landlord within five (5) business days of each anniversary shall surrender to
Tenant the letter of credit then being held by Landlord. Notwithstanding the
foregoing, if Tenant's stock is sold to the public pursuant to an "IPO",
commencing on the anniversary of the Commencement Date immediately following the
date of Tenant's IPO and provided that Tenant is not then in material default
hereunder, the remaining balance of Tenant's security deposit shall be
proportionately reduced in equal proportions over a five (5) year term until
such deposit has been fully released.

                  Landlord's retention of Tenant's security deposit is not
intended as a penalty but as a full and complete liquidated damages to
compensate Landlord for any and all damages suffered by reason of Tenant's
failure to take occupancy of the Premises pursuant the provisions of this Lease.

                  Landlord shall keep the security deposit in an escrow account,
and Tenant shall be entitled to interest or other earnings on such security
deposit. Such interest bearing account shall be opened jointly by Landlord and
Tenant, subject, however, to the provisions of an escrow agreement acceptable to
Landlord and Tenant. The escrow agreement shall permit Tenant to direct the
investment of such funds and shall provide that all interest or other earnings
(net of any fees and charges payable with respect to the escrow account) shall
automatically be paid out to Tenant not less frequently than quarterly, unless
there is an uncured default under this Lease.

         4.       ADDITIONAL RENT.

                  4.1      If, in any calendar year after the initial lease year
of this Lease, the Direct Costs (as hereinafter defined) shall exceed the sum
of $5.50 per net rentable square feet of the Building (the "Base Direct
Costs"), Tenant shall pay as additional rent ("Additional Rent") the Tenant's
Proportionate Share of such excess, in addition to and at the time provided for
payment of Base Rent. For purposes of the preceding provisions, the term
"Tenant's Proportionate Share" shall mean 52.13%. In the event the amount of
space leased by Tenant or the amount of space contained in the Building shall
increase or decrease subsequent to the date of this Lease, Tenant's
Proportionate Share shall be appropriately adjusted. Such percentage at the
time of execution of this Lease is calculated by dividing the Tenant's
estimated rentable area by the total estimated rentable area in the Building.
Tenant's Proportionate Share shall always and at any particular time be the
percentage derived form dividing Tenant's rentable square footage by the total
rentable square footage contained in the Building at such time.

                  4.2      From and after May 1, 2001, for each year during the
term of this Lease, Landlord may furnish to Tenant a written statement or
statements showing in reasonable detail Landlord's estimated Direct Costs for
the immediately succeeding calendar year, the amount, if any, of the excess of
such estimated Direct Costs over the Base Direct Costs, and the amount of any
Additional Rent estimated to be payable by Tenant, appropriately prorated on a
monthly basis. Thereafter, the monthly Additional Rent payment becoming due
hereunder shall be in the amount set forth in such estimated additional rent
statement from Landlord. Landlord's failure to deliver, nor the late delivery
of, such statement or statements more than six (6) months after the end of a
calendar year shall not constitute a default by Landlord hereunder but shall
constitute a waiver of Landlord's right to any estimated or actual Additional
Rent (excluding, however, those items of Additional Rent that are being
disputed in good faith and the outcome is not known at the expiration of such
six (6) month period).

                  4.3      If Landlord has furnished to Tenant the statement or
statements referred to in Section 4.2 above, within one hundred twenty (120)
days following the close of each calendar year, Landlord shall furnish to Tenant
a written statement of reconciliation (the "Reconciliation")

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showing in reasonable detail Landlord's actual Direct Costs for the relevant
calendar year, together with a statement of any adjustments necessary to
reconcile any sums paid (or credited) hereunder as estimated Additional Rent
during such calendar year with those sums actually payable and due hereunder for
such calendar year as set forth in the Reconciliation. If the Reconciliation
shows that additional sums are due from Tenant hereunder, Tenant shall pay such
sums to Landlord within ten (10) days after receipt of the Reconciliation. If
the Reconciliation shows that a credit is due Tenant, such sum shall be refunded
to Tenant within ten (10) days after Tenant's receipt of the Reconciliation. In
the event this Lease has expired or been terminated prior to the end of a
calendar year, the obligation to reconcile shall survive such expiration or
termination. Within one hundred twenty (120) days following the expiration or
termination of this Lease, Landlord shall furnish to Tenant the Reconciliation,
and if such Reconciliation shows that additional sums are due from Tenant
hereunder, Tenant shall pay such sums to Landlord within ten (10) days after
receipt of the Reconciliation. Landlord's failure to deliver the Reconciliation
to Tenant as provided herein shall not constitute a default by Landlord
hereunder but shall operate as a waiver of Landlord's right to collect all
Additional Rent and other sums due hereunder for the year in question. Where
only a portion of a calendar year falls within the term hereof, Landlord shall
calculate estimated (or actual, as the case may be) Additional Rent based upon a
reasonable proration of estimated (or actual) Direct Costs for such calendar
year.

                  4.4      Landlord may divide the statements referred to above
into separate statements for Tax Costs (as hereinafter defined) and Operating
Costs (as hereinafter defined). Additionally, Landlord may estimate and measure
Tax Costs or Operating Costs, or both, on a fiscal year instead of a calendar
year basis, and in such event any and all references in this Section 4 to
calendar year shall be deemed to refer to such fiscal year.

                  4.5      Notwithstanding anything to the contrary contained
herein, under no circumstances shall the provisions of this Section 4 cause
Base Rent to be reduced. Any reference to Landlord's "actual" Direct Costs in
this Section 4 shall be deemed to include an allowance for any adjustment to
reflect the level of occupancy of the Building to the extent provided for
below, if at all.

                  4.5.1    Tenant shall have the right during normal business
hours to audit, either by itself or with a person or firm selected by Tenant,
the records of Landlord relating to the calculation of Direct Costs; provided,
however, that Tenant's audit rights shall be limited to once per year during
the term of the Lease and any such audit shall not cover more than the
immediately preceding three (3) calendar years. Any such firm involved in the
audit shall be a nationally recognized accounting firm experienced in
conducting audits of expense pass-throughs for similar commercial buildings. If
such audit reveals errors or other discrepancies in the excess of fifteen
percent (15%) in the Landlord's determination of Direct Costs in any particular
year, then Landlord shall pay for the costs of such audit; otherwise, the cost
of such audit shall be paid entirely by Tenant. If such audit is conducted,
Tenant shall only be responsible for the portion of such Direct Costs as is
verified by such audit, and Landlord, within five (5) business days of Tenant's
demand therefor, shall refund to Tenant any excess Direct Costs which may have
been previously paid by Tenant to Landlord

                  4.6      "Tax Costs" shall mean the sum of the following: any
and all real property taxes, assessments (including, but not limited to,
general and special assessments), charges, surcharges, license and other fees,
levies, costs of improvement bonds, penalties (to the extent such penalties are
not imposed as a result of Landlord's negligence), and any and all other taxes
(other than income, franchise and estate taxes of Landlord) on or relating to
all or a portion of the Project (as it may exist from time to time) including,
but not limited to, walkways, the Parking Lot, common areas, landscaped areas,
fountains and art works or any legal or equitable interest of Landlord therein
which may be imposed, levied, assessed or charged for any reason by any
authority having the direct or indirect power to tax including, but not limited
to, the United States or the state, county or city in which the Building is
located or any other local governmental authority, agency, district or
political subdivision thereof, together with personal property taxes,
assessments, fees and charges (other than those paid by Tenant pursuant to
Section 28 below) and fees of tax consultants and attorneys retained to seek a
reduction, to contest or to act in some other manner in connection with any of
the foregoing Tax Costs, together with any tax, assessment or other amount
(including, without limitation, commercial rental taxes) imposed, levied or
charged as a substitute for or a supplement to the foregoing. If the assessed
valuation or

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Tax Costs of the Building for any calendar year during the term of this Lease
shall not be based upon a completed building at least ninety-five percent (95%)
occupied, then the Tax Costs during such year or years shall be adjusted to
reflect the taxes which would have been payable for such year or years if the
Building had been completed and was ninety-five percent (95%) occupied during
such year or years. Tax Costs for each tax year shall be appropriately prorated
to determine the Tax Costs for the subject calendar year.

                  4.7      "Operating Costs" shall mean the sum of the
following: any and all costs, expenses and disbursements paid or incurred by
Landlord in connection with the management, operation, security, maintenance
and repair of, and janitorial services for, the Project (as it may exist from
time to time) including, but not limited to, salaries, wages, benefits and
related costs for employees; management fees, either as charged to Landlord by
outside management companies or an amount not exceeding the amount typically
charged by outside management companies if Landlord manages the Project itself,
in either event not to exceed four percent (4%) together with the rental value
of space occupied as the Project management office; charges for utilities and
services (including any taxes thereon); the cost of insurance; the cost of
cleaning and building supplies and materials; any amounts payable under any and
all reciprocal easement agreements, covenants, conditions and restrictions (as
same may be supplemented or amended from time to time) or other instrument
pertaining tot he sharing of costs by the Building; a reasonable allowance for
depreciation (or amortization) with respect to machinery and equipment; and
costs relating to the financing of capital investment items (which, if
internally financed, shall include interest at an annual rate reasonably
determined by Landlord). If, during any calendar year, the Building is less
than ninety-five percent (95%) occupied, the Operating Costs shall be adjusted
to reflect the Operating Costs of the Building as though ninety-five percent
(95%) occupied.

                  4.7.1    Notwithstanding the foregoing, for purposes of this
Lease operating costs shall not, however, include:

                           (a) costs, including marketing costs, legal fees,
space planners' fees, advertising and promotional expenses, and brokerage fees
incurred in connection with the original construction or development, or
original or future leasing of the Project and costs, including permit, license
and inspection costs, incurred with respect to the installation of tenant
improvements made for new tenants initially occupying space in the Project after
the Lease Commencement Date or incurred in renovating or otherwise improving,
decorating, painting or redecorating vacant space for tenants or other occupants
of the Project (excluding, however, such costs relating to any common areas of
the Project or parking facilities);

                           (b) costs for which the Landlord is reimbursed by any
tenant or occupant of the Project or by insurance by its carrier or any tenant's
carrier or by anyone else, and electric power costs for which any tenant
directly contracts with the local public service company;

                           (c) any bad debt loss, rent loss, or reserves for bad
debts or rent loss;

                           (d) all items and services for which Tenant or any
other tenant in the Project reimburses Landlord or which Landlord provides
selectively to one or more tenants (other than Tenant) without reimbursement;
and

                           (e) costs arising from the gross negligence or
willful misconduct of Landlord or its agents, employees, vendors, contracts, or
providers of materials or services.

                           (f) Costs incurred by Landlord or its affiliates due
to a violation or violations by Landlord or by any tenants of the terms and
conditions of any leased space in the Building (excluding, however, any costs
incurred by Landlord or its affiliates in connection with the installation of
any parking access control program);

                           (g) Overhead or profit increment paid to the Landlord
for any service in the Building to the extent such causes the costs of such
services to exceed the costs to the Landlord if provided by third parties on a
competitive bid basis;

                           (h) Compensation paid to clerks, attendants or any
commercial concessions operated by Landlord or its employees or any compensation
payable to persons above the grade

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<PAGE>   11

of on-site property manager; and

                           (i) Costs of a capital nature (excluding costs
associated with the installation of any parking access control system) and
including, without limitation, capital improvements, capital repairs, capital
equipment, except where such improvements are expected to reduce operating costs
net of any associated amortization of the cost of such improvements.

                  4.8      "Direct Costs" shall mean both Tax Costs and
Operating Costs, whether determined separately or jointly.

         5.       RESTRICTIONS ON USE.

                  Tenant shall use and occupy the Premises only as specified in
the Basic Lease Information. Tenant shall not do or permit anything to be done
in or about the Premises which will in any way obstruct or interfere with the
rights of other tenants or occupants of the Building or injure or annoy them,
nor use or allow the Premises to be used for any improper, immoral, unlawful or
objectionable purpose, nor shall Tenant cause or maintain or permit any
nuisance in or about the Premises, nor shall Tenant cause or permit any
Hazardous Materials (as hereinafter defined) to be brought to the Premises or
used, handled, stored, released or disposed of in, under or about the Premises,
the Building or the Project except for ordinary and general office supplies
typically used in the ordinary course of business within office buildings (some
or all of which may constitute "Hazardous Materials" as defined in this Lease).
Tenant shall not conduct business or other activity in or about the Premises of
such a nature as to place an unreasonable or excessive burden upon the common
areas. Tenant shall not commit or suffer the commission of any waste in or
about the Premises. As used in this Lease, the term "Hazardous Materials" shall
mean and include any hazardous or toxic materials, substances or wastes as now
or hereafter designated under any law, statute, ordinance, rule, regulation,
order or ruling of any agency of the State, the United States Government or any
local governmental authority including, without limitation, asbestos,
petroleum, petroleum hydrocarbons and petroleum based products, urea
formaldehyde and other chloroflurocarbons.

         6.       COMPLIANCE WITH LAWS.

                  Tenant shall not use the Premises or permit anything to be
done in or about the Premises which shall in any way conflict with any law,
statute, ordinance or governmental rule or regulation now in force or which may
hereafter be enacted or promulgated. Tenant shall not do or permit anything to
be done on or about the Premises or bring or keep anything therein which will
in any way increase the rate of any insurance upon the Building in which the
Premises are situated or any of its contents or cause a cancellation of said
insurance or otherwise affect said insurance in any manner, and Tenant shall at
its sole cost and expense promptly comply with all laws, statutes, ordinances
and governmental rules, regulations and requirements now in force or which may
hereafter be in force and with the requirements of any board of fire
underwriters or other similar body now or hereafter constituted relating to or
affecting the condition, use or occupancy of the Premises.

         7.       CONSTRUCTION OF BUILDING; IMPROVEMENTS AND ALTERATIONS.

                  7.1      Construction of Building. Landlord, at its sole cost
and expense, shall construct the Building and related improvements on the
Property, which shall include an office building of approximately 104,825 net
rentable square feet, all in accordance with the Base Building Improvements
which shall be reviewed and approved by Tenant. The Base Building Improvements
may be modified and supplemented as hereinafter provided.

                  Landlord covenants and agrees that the Building will be
constructed with all new, good quality material in a good and workmanlike
manner, in accordance with good construction practices, and in accordance with
the approved Base Building Improvements (as the same may be modified or
supplemented as hereinafter provided) and all applicable codes, ordinances and
laws, including, without limitation, the requirements of the Americans With
Disabilities Act, the zoning ordinances and building code of the city, county or
other political subdivision having jurisdiction in which the Property is
located, and any building or architectural restrictions contained in any
restrictions to which the Property is subject. Landlord shall obtain all
approvals, permits and other governmental consents necessary or required to
construct the

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<PAGE>   12

Building in the manner herein provided and Landlord shall pay the cost thereof
(excluding any City of Brentwood impact fees which were assigned and transferred
to Landlord in connection with Landlord's acquisition of the Property).

                  Landlord represents, warrants and covenants that construction
of the Building will commence as soon as practicable, but in all events within
thirty (30) days after Landlord acquires title to the Property. Landlord shall
diligently prosecute the same to completion in a timely manner so that the
Commencement Date of this Lease shall occur as set forth in Section 2 above.

                  All final decisions on plans and other design and engineering
decisions relating to construction of the Building shall be made by Landlord,
except that any material change in the scope of work depicted in the Base
Building Improvements and any material substitution of materials or methods of
construction from those described in the Base Building Improvements shall
require the prior written approval of Tenant. Such approval shall not be
unreasonably withheld or delayed, provided that such change or substitution (1)
is not inconsistent with the intent of the Base Building Improvements and does
not result in the substitution of inferior materials or methods of construction,
(2) does not materially delay or extend the Commencement Date (subject to Force
Majeure or Tenant Delay), (3) does not increase the financial commitment or
obligations or risk of legal liability on the part of Tenant under this Lease,
and (4) does not materially adversely affect Tenant's business operations to be
conducted from the Building. Upon notice to Landlord, Tenant shall, at all
reasonable times, have the right to inspect the progress and performance of the
construction of the Building to determine compliance with the Base Building
Improvements.

                  In construction of the Building, Landlord shall assure and
does hereby represent, warrant, covenant and agree that the Building shall be
constructed and equipped by Landlord, at its sole cost and expense (and not as a
part of the Tenant Improvement Allowance set forth in Section 7.2 below), so
that it shall include all of the Base Building Improvements. If and to the
extent Landlord fails to deliver the Building with all Base Building
Improvements in place and Tenant is required to bear such expense out of its
Tenant Improvement Allowance, such Tenant Improvement Allowance shall be deemed
increased dollar for dollar by Landlord to such extent, and Landlord shall
reimburse Tenant such amounts within five (5) business days of Tenant' demand
therefor.

                  7.2      Initial improvements to the Premises shall be
governed by the provisions of Exhibit "E" attached hereto and hereby made a
part hereof ("Work Agreement") and the other provisions of this Lease not in
conflict therewith. Landlord shall make a contribution to Tenant of $21.00 per
rentable square feet of the Premises (the "Tenant Improvement Allowance") to
defray a portion of the tenant improvement costs for the Premises and the costs
actually incurred by Tenant for telecommunications, architectural and
engineering services, permit fees and related infrastructure costs, all as more
fully set forth in the Work Agreement. In no event shall any portion of the
Tenant Improvement Allowance be used to pay the cost of Tenant's personal
property. If and to the extent Landlord fails to deliver the Building with all
Base Building Improvements in place and Tenant is required to bear such expense
out of the Tenant Improvement Allowance, such allowance shall be increased
dollar-for-dollar by Landlord to such extent.

                  7.3      Without the prior written consent of Landlord,
Tenant shall not make or permit to be made any alterations, additions or
improvements in, on or to the Premises or the Project or any part thereof,
except for interior, nonstructural alterations to the Premises not exceeding
Five Dollars ($5.00) per net rentable square feet in cumulative costs
throughout the term hereof. Notwithstanding any contrary provision herein,
Tenant shall not, in any event, make any alterations, additions or improvements
which affect structural portions of the Building or Building systems or which
are visible from the exterior of the Premises or which interfere with or
disrupt other tenants in the Building or with any work then being carried out
therein by Landlord or its contractors. Any alterations, additions or
improvements desired by Tenant shall be made at Tenant's sole cost and expense
in compliance with Section 9 below and in accordance with plans and
specifications, and pursuant to governmental permits, approved in advance by
Landlord. Any contractor selected by Tenant to make same must be bondable and
licensed and be approved in advance by Landlord and must provide insurance
coverage acceptable to Landlord. At Landlord's option, any alterations,
additions or improvements desired by Tenant shall be made

                                       12
<PAGE>   13

by Landlord (or its contractors) for Tenant's account, and Tenant shall pay
the cost thereof to Landlord prior to Landlord's contracting for such work;
provided, however, that the bid obtained by Landlord shall not exceed the lowest
bona fide bid, from a contractor reasonably satisfactory to Landlord,
theretofore obtained by Tenant and communicated to Landlord. Upon completion of
any alterations, additions or improvements, Tenant shall furnish to Landlord a
set of "as built" plans and specifications therefor, and, within ten (10) days
after such completion, Tenant shall cause an appropriate notice of completion to
be recorded in the Official Records. Tenant shall cause all such alterations,
additions or improvements to be completed in a good, workmanlike, diligent,
prompt and expeditious manner in compliance with all applicable laws. Landlord's
approval of Tenant's plans and specifications shall not constitute a
representation or warranty of Landlord as to the adequacy thereof or compliance
thereof with applicable laws.

         8.       REPAIRS AND MAINTENANCE.

                  8.1      By taking possession of the Premises, Tenant shall
accept the Premises as being in the condition in which Landlord is obligated to
deliver them and otherwise in good order, condition and repair, subject to
punch list items to be installed, completed or repaired by Landlord within
mutually agreeable time frames ("Punch List") as contained in an itemized
listing which must be submitted, if at all, by Tenant to Landlord within thirty
(30) of the Commencement Date. Notwithstanding the foregoing, concerning
Tenant's acceptance and any other waivers contained elsewhere in this Lease,
Tenant shall not be deemed to have waived claims or rights against Landlord for
any latent defects in the Building or the Premises which, by their nature, are
not reasonably discoverable within such thirty (30) day period. As to such
defects, Tenant shall have thirty (30) days from the date of actual discovery
to notify Landlord in writing of claims for latent defects, and Landlord shall
thereafter take such steps as may be reasonably necessary to resolve such
issues. Subject to the provisions of Section 22 below, Tenant shall, at all
times during the term hereof and, at Tenant's sole cost and expense, keep the
Premises and every part thereof in good order, condition and repair. It is
hereby understood and agreed that Landlord has no obligation to alter, remodel,
improve, repair, decorate or paint the Premises or any part thereof, except as
specified in Section 22 below or in the Work Agreement, and that no
representations relating to the condition of the Premises, the Building or the
Project have been made by Landlord (or any employee or agent thereof) to
Tenant, except as may be expressly set forth in this Lease.

                  8.2      Subject to the provisions of Section 8.1. above and
Section 22 below, Landlord shall maintain the common areas, the foundation and
structural portions of the Building, and the Building systems providing the
services and utilities to be furnished by Landlord pursuant to Section 13.1.
below, in reasonably good order and condition and repair.

                  8.3      Landlord shall be responsible for compliance of the
Project (excluding the interior of the Premises) with the Americans With
Disabilities Act and any similar state or other federal laws (collectively, the
"ADA Laws") in effect on the Commencement Date of the Lease; provided, however,
Landlord shall be responsible for any emergency exit signs located within the
Premises and for the bathrooms within the Premises. Landlord shall be
responsible for the Project's compliance with any modifications, revisions or
changes in such laws which are effective after the Commencement Date provided
that the necessity for complying with such laws is a result of a "Compliance
Triggering Event" (as hereinafter defined). For the purposes hereof, a
"Compliance Triggering Event" shall mean any of the following (a) receipt by
Landlord, Tenant or any tenant of a notice from any governments agency or
authority (federal, state or local) requiring that the Project of any portion
thereof comply with the ADA Laws, (b) the making, filing or threatening to make
or file a claim of action arising, in whole or in part, out of alleged
non-compliance of the Project, or any portion thereof, with the ADA Laws, (c)
the non-compliance of the Project or any portion thereof with the ADA Laws
causing a default under any loan secured by the Project, or (d) any actions of
Landlord, Tenant or any tenant with respect to the Property that cause any of
the foregoing to occur.

         9.       LIENS.

                  Tenant shall keep the Project free from any liens arising out
of any work performed, material furnished or obligations incurred by Tenant,
unless Tenant is contesting such lien in good faith by appropriate proceedings
and so long as Landlord's interest in the Building is

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<PAGE>   14

not jeopardized or Landlord's financing threatened. In the event that Tenant
shall not, within thirty (30) days following the imposition of any such lien,
cause the same to be released of record by payment or posting of a proper bond,
Landlord shall have, in addition to all other remedies provided herein and at
law or in equity, the right, but not obligation, to cause same to be released by
such means as it shall deem proper including, but not limited to, payment (from
the security deposit referred to in Section 3.2. above or otherwise) of the
claim giving rise to such lien. All such sums paid by Landlord and all expenses
incurred by it in connection therewith shall be considered additional rent and
shall be payable to it by Tenant on demand with interest at the Interest Rate
(as defined in Section 29 below). Landlord may require, at Landlord's sole
option, that Tenant cause to be provided to Landlord, at Tenant's sole cost and
expense, a performance and labor and materials payment bond reasonably
acceptable to Landlord with respect to any improvements, additions or
alterations to the Premises. Landlord shall have the right at all times to post
and keep posted on the Premises any notices permitted or required by law, or
which Landlord shall deem proper, for the protection of Landlord, the Project
and any other party having an interest therein from mechanics' and materialmen's
liens, and Tenant shall give to Landlord at least five (5) business days' prior
notice of commencement of any work on the Premises.

         10.      ASSIGNING AND SUBLETTING.

                  10.1     Tenant shall not assign, sublease or otherwise
transfer, voluntarily, by operation of law or otherwise, any interest herein or
in the Premises, nor shall Tenant permit any transferee to further assign,
sublease or otherwise transfer any such interest, without Landlord's prior
written consent, which shall not be unreasonably withheld. For purposes of this
Article, the term "transfer" shall include, without limitation, entering into
any license or concession agreement or otherwise permitting any third party
other than Tenant and Tenant's employees, contractors, invitees and guests to
occupy or use the Premises or any portion thereof. In determining whether to
grant such consent, Landlord may consider various factors including, without
limitation, the following: (a) business criteria relating to the proposed
transferee's background, experience, reputation, general operating ability and
ability to perform Lease obligations, and potential for succeeding in its
business, (b) financial criteria relating to the proposed transferee's
financial responsibility, credit rating and capitalization, (c) the identity
and personal characteristics of the proposed transferee and its invitees and
guests, and (d) the nature of the proposed use and business of the proposed
transferee and its effect on the tenant mix of the Building. Without limiting
the generality of the foregoing, Landlord hereby reserves the right to
condition any such consent upon Landlord's determination that (i) the proposed
transferee is at least as financially and morally responsible as Tenant then
is, or was upon the execution hereof, whichever is greater, and (ii) the
proposed transferee shall use the Premises in compliance with Section 6 above.
Notwithstanding any provision in this Lease to the contrary, Tenant shall not
enter into any proposed assignment, sublease or other transfer of any interest
herein or in the Premises (x) with a prospective tenant which is negotiating
directly with Landlord to lease space in the Building or (y) which would result
in (A) detraction from the first-class character or image of the Building or
diminution in the value thereof (B) the Premises being occupied by more than
three (3) tenants per floor, or (C) a breach by Landlord of any then existing
exclusive right in favor of any other tenant of the Building, any loan
obligation or agreement, any covenants, conditions and restrictions of record,
or any insurance policy. Tenant shall submit the following information with a
written request for Landlord's consent to any assignment, sublease or other
transfer: (1) all transfer and related documents, (2) financial statements, (3)
business, credit and personal references and history, and (4) such other
information as Landlord may reasonably request relating to the proposed
transfer and the parties involved therein. Any transaction which does not
comply with the provisions of this Section shall be voidable at the option of
Landlord and shall constitute a breach of and default under this Lease by
Tenant.

                  10.2     Notwithstanding any provision in this Lease to the
contrary, if Tenant desires, at any time to assign, sublease or otherwise
transfer the entirety of its interest herein or in the Premises to any party
other than an affiliate for the balance of the initial Lease term or if Tenant
desires to assign, sublease or otherwise transfer any interest herein or in the
Premises to any party (other than an affiliate) for the balance of the initial
term of this Lease or any extension term, it shall first notify Landlord of its
desire to do so and shall designate in such notice the space and time period
involved. Landlord shall have sixty (60) days in which to elect, at its option,
to terminate this Lease as to said space, for said time period, in which event
said space shall be

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<PAGE>   15

excluded from the term "Premises" during said time period and Base Rent,
Additional Rent, Tenant's parking rights, and any other provisions hereof based
on the size of the Premises shall be equitably reduced to reflect such
exclusion. If Landlord does not, within such sixty (60) day period, deliver to
Tenant notice of its election to so recapture such space, Tenant may proceed to
assign, sublease or otherwise transfer in accordance with the terms designated
in Tenant's notice, subject to the other provisions of this Lease including,
without limitation, Landlord's reasonable consent thereto pursuant to the
foregoing.

                  10.2.1   If Landlord elects to exercise its election to
recapture (as set forth in Section 10.2 above) and Landlord such recaptured
space, Landlord shall pay to Tenant, promptly following Landlord's receipt
thereof, an amount equal to fifty percent (50%) of the amount, if any, by which
all rental and other payments (whether paid in installments, as lump sums or
otherwise) received by Landlord with respect to the space in question received
by Landlord exceed the aggregate of the Base Rent, Additional Rent and other
amounts payable pursuant to this Lease for the subject period with respect to
such space after deducting commissions and other out-of-pocket costs paid by
Landlord in connection with the transaction, and any tenant improvements costs,
free rent and any other concessions granted to the new lessee.

                  10.2.2   If Landlord elects to exercise its election to
recapture (as set forth in Section 10.2 above) and Landlord leases such
recaptured space, the term of such lease shall not extend beyond the then
remaining balance of the initial term of this Lease. If, upon the expiration or
earlier termination of a lease of such recaptured space, Landlord receives a
bona fide offer, in writing, to re-lease all or any portion of such recaptured
space, Tenant shall have a right of first refusal to re-lease such recaptured
space on the same terms and conditions upon which such third party has offered
to re-lease such recaptured space. Within five (5) business days after Landlord
has provided such written notification to Tenant of the terms and conditions on
which such third party has offered to re-lease such recaptured space together
with a true, complete and accurate copy of such offer to re-lease as executed by
such third party. Tenant shall notify Landlord, in writing, of Tenant's election
to re-lease such recaptured space on the same terms and conditions as such third
party is willing to re-lease such recaptured space or, alternatively, of
Tenant's election not to re-lease such recaptured space. Tenant's failure to
deliver its written election notice to Landlord within the time period specified
above shall be deemed to be Tenant's election not to re-lease such recaptured
space.

                  10.3     With respect to any assignment, sublease or other
transfer of any interest herein or in the Premises, Tenant shall,
notwithstanding any contrary provision herein, pay to Landlord, promptly
following Tenant's receipt thereof, fifty percent (50%) of the amount by which
all rental and other payments (whether paid in installments, as lump sums, or
otherwise) relating to the space in question received by Tenant exceed the
aggregate of the Base Rent, Additional Rent and other amounts payable pursuant
to this Lease for the subject period with respect to such space (with the rental
and other amounts payable by Tenant for the Premises allocated on the basis of
rentable area) after deducting reasonable commissions and other reasonable
out-of-pocket costs paid by Tenant in connection with the transaction in
question, any fee paid to Landlord pursuant to Section 10.4 tenant improvement
costs, free rent and any other concessions granted to the transferee. The
provisions of this Section 10.3 shall apply regardless of whether such
assignment, sublease or other transfer is made in compliance with the provisions
of this Lease. Any payments made to Landlord pursuant to this Section shall not
cure any default under this Lease arising from such assignment, sublease or
transfer. Tenant shall not artificially structure any sublease, assignment or
other transfer in order to reduce the amount payable to Landlord under this
Section, nor shall Tenant take any other steps for the purpose of circumventing
its obligation to pay amounts to Landlord under this Section; in the event that
Tenant does same, the amount payable to Landlord under this Section shall be the
amount that would have been payable to Landlord had same not occurred.

                  10.4     Tenant shall pay to Landlord a fee of $500 plus
Landlord's costs and expenses (including, but not limited to, reasonable
attorneys', accountants', architects', engineers' and consultants' fees)
incurred in connection with the processing and documentation of any requested
assignment, sublease or other transfer.

                  10.5     No assignment, sublease or other transfer, even with
the consent of Landlord, shall result in Tenant's being released from any of
its obligations hereunder. Landlord's consent

                                       15
<PAGE>   16

to any one transfer shall apply only to the specific transaction thereby
authorized and such consent shall not be construed as a waiver of the duty of
Tenant or any transferee to obtain Landlord's consent to any other or subsequent
transfer or as modifying or limiting Landlord's rights hereunder in any way.
Upon any assignment hereof, the assignee shall assume in writing all obligations
and covenants of Tenant thereafter to be performed or observed hereunder.
Landlord's acceptance of rent directly from any assignee, subtenant or other
transferee shall not be construed as Landlord's consent thereto nor Landlord's
agreement to accept the attornment of any subtenant in the event of any
termination of this Lease. In no event shall Landlord's enforcement of any
provision of this Lease against any transferee be deemed a waiver of Landlord's
right to enforce any term of this Lease against Tenant or any other person. If
Tenant's obligations hereunder have been guaranteed, Landlord's consent to any
assignment, sublease or other transfer shall not be effective unless the
guarantor also consents to such transaction.

                  10.6     Except in connection with Tenant's initial public
offering of its equity ("Tenant's IPO"), if Tenant is a corporation, an
unincorporated association or a partnership, any cumulative transfer, assignment
or hypothecation of any stock or interest in such corporation, association or
partnership greater than fifty percent (50%) thereof, or any cumulative
transfer, assignment or hypothecation (other than in the ordinary course of
business) of any assets of such corporation, association or partnership greater
than twenty-fifty percent (50%) thereof, shall be deemed an assignment within
the meaning and provisions of this Section and shall be subject to the
provisions hereof.

         11.      WAIVER; INDEMNITY.

                  11.1     Notwithstanding any contrary provision in this Lease,
Landlord shall not be liable and Tenant hereby waives all claims against
Landlord for any injury or damage to any person or property or any other loss
(including, but not limited to, loss of income) in or about the Premises, the
Building or the Project by or from any cause whatsoever, and, without limiting
the generality of the foregoing, whether caused by water leakage of any
character from the roof, walls, basement or any other portion of the Premises,
the Building or the Project, or by gas, fire, oil or electricity, or by any
interruption of utilities or services, or by any tenant, occupant or other
person, or by any other cause whatsoever in, on or about the Premises, the
Building or the Project. Notwithstanding any contrary provision in this Lease,
Landlord and its agents shall in no event be liable for consequential damages
hereunder.

                  11.2     Except to the extent arising from the gross
negligence or willful misconduct of Landlord, Tenant shall indemnify Landlord,
its partners, officers, agents, servants, employees and invitees (collectively,
the "Landlord Parties") and hold the Landlord Parties harmless from and against
any and all claims, demands, losses, damages, liabilities, costs and expenses
(including, but not limited to, reasonable attorneys' fees) arising from
Tenant's use or enjoyment of the Project, from the conduct of Tenant's
business, from any act or omission, work or thing done, permitted or suffered
by Tenant (or any officer, employee, agent, contractor, representative,
licensee, guest, invitee or visitor thereof) in or about the Project, or from
any default under this Lease by Tenant. If any action or proceeding is brought
against any Landlord Party by reason of any such matter, Tenant shall, upon
Landlord's request, defend same at Tenant's expense by counsel satisfactory to
Landlord, in its sole and absolute discretion. The provisions of this Section
11.2. shall survive the expiration or termination of this Lease with respect to
any claims or liability arising from events occurring prior to such expiration
or termination.

         12.      INSURANCE.

                  12.1     From and after the date of delivery of possession of
the Premises from Landlord to Tenant and throughout the term hereof, Tenant
shall carry and maintain, at its own expense, the following types, amounts and
forms of insurance:

                  12.1.1   Tenant shall carry and maintain a policy of
commercial general liability insurance with a combined single limit of Two
Million Dollars ($2,000,000) per occurrence in the name of Tenant (with
Landlord and, if requested by Landlord, any mortgagee, trust deed holder,
ground lessor or secured party with an interest in this Lease, the Building or
the Project named as additional insured). Such policy shall specifically
include, without limitation, personal injury, broad form property damage,
liquor liability (if alcoholic beverages shall be sold or served, with a
license being required therefor, in or on the Premises), and contractual
liability coverage, the

                                       16
<PAGE>   17

last of which shall cover the insuring provisions of this Lease and the
performance by Tenant of the indemnity agreements in Section 11 above. Such
policy shall contain cross-liability endorsements and shall provide coverage on
an occurrence basis. The amount of such insurance required hereunder shall be
subject to adjustment from time to time as reasonably requested by Landlord.

                  12.1.2   Tenant shall carry and maintain a policy or policies
of property insurance in the name of Tenant covering Tenant's leasehold
improvements and any property of Tenant at the Premises and providing
protection against all perils included within the classification of fire,
extended coverage, vandalism, malicious mischief, special extended peril (all
risk) and sprinkler leakage, in an amount equal to at least one hundred percent
(100%) of the replacement cost thereof from time to time (including, without
limitation, cost of debris removal), with an agreed amount endorsement, and
providing protection against loss of income and extra expense. Any proceeds
from such insurance shall be used for the repair or replacement of the property
damaged or destroyed, unless this Lease is terminated pursuant to the
provisions hereof. If the Premises are not repaired or restored following
damage or destruction, Landlord shall receive any proceeds from such insurance
allocable to Tenant's leasehold improvements.

                  12.1.3   Tenant shall carry and maintain a policy or policies
of workers' compensation and employers' liability insurance in compliance with
all applicable laws.

                  12.1.4   All of the policies required to be obtained by Tenant
pursuant to the provisions of this Section 12.1. shall be issued by companies
licensed to do business in Tennessee, and shall be in form and content,
acceptable to Landlord. All policies must be issued by insurers with a policy
holder rating of "A" or better and a financial rating of "X" in the most recent
version of Best's Key Rating Guide. Without limiting the generality of the
foregoing, any deductible amounts under said policies shall be subject to
Landlord's approval. Tenant shall, prior to delivery of the Premises by
Landlord to Tenant, provide Landlord with copies of and certificates for all
insurance policies. All insurance policies shall provide that they may not be
altered or cancelled until after thirty (30) days' written notice to Landlord
(by any means described in Section 27 below) and to any other additional
insureds thereunder. Tenant shall, at least thirty (30) days prior to the
expiration of any of such policies, furnish Landlord with a renewal or binder
therefor. Tenant may carry insurance under a so-called "blanket" policy,
provided that such policy provides that the amount of insurance required
hereunder shall not be prejudiced by other losses covered thereby. All
insurance policies carried by Tenant shall be primary with respect to, and
non-contributory with, any other insurance available to Landlord. Such policies
shall provide that the interests of Landlord and any other additional insureds
designated by Landlord shall not be invalidated due to any breach or violation
of any warranties, representations or declarations contained in such policies
or the applications therefor. If Tenant fails to carry any insurance policy
required hereunder or to furnish copies thereof and certificates therefor
pursuant hereto, Landlord may, without limiting Landlord in the exercise of any
other right or remedy, obtain such insurance, and Tenant shall reimburse
Landlord for the costs thereof with the next monthly rental payments due
hereunder.

                  12.2     During the term of this Lease, Landlord shall keep
and maintain property insurance for the Project in such amounts, and with such
coverages, and Landlord may keep and maintain such other insurance (including,
but not limited to, earthquake insurance), as is customary for similar
buildings in the greater Nashville Metropolitan area or as any lienholder may
require. Tenant acknowledges that it shall not be a named insured in such
policies and that it has no right to receive any proceeds from any such
insurance policies carried by Landlord. Notwithstanding any contrary provision
herein, Landlord shall not be required to carry insurance covering the property
described in Section 12.1.2. above or covering flood or earthquake.

                  12.3     Each party hereto hereby waives any and all rights to
recover against the other party, or against the officers, employees or
principals thereof, for loss or damage arising from any peril to the extent
insured against under any property or workers' compensation insurance policy
carried by such waiving party. The foregoing waiver shall be effective only to
the extent permitted under each such insurance policy, and, to the extent
reasonably available, each such policy shall be endorsed to reflect the
foregoing.

                  12.4     Tenant shall pay any increases in insurance premiums
relating to property in the

                                       17
<PAGE>   18

Project to the extent that any such increase is specified by the
insurance carrier as being caused by Tenant's acts or omissions or use or
occupancy of the Premises.

         13.      SERVICES AND UTILITIES.

                  13.1     Subject to the provisions contained elsewhere herein
and to the rules and regulations of the Building, Landlord shall cause to be
furnished to the Premises water and electricity, and heating, ventilation and
air conditioning, required in Landlord's judgment for the comfortable use and
occupation of the Premises (but not in excess of such utilities and services
which are customarily furnished in comparable office buildings in the immediate
market area), during the business hours of the Building, which shall be 7:00
A.M. to 7:00 P.M., Monday through Friday, and 8:00 A.M. to 1:00 P.M. on
Saturday, except for New Year's Day, Memorial Day, Independence Day, Labor Day,
Thanksgiving Day, Christmas Day and such other holidays as may be determined by
Landlord from time to time (collectively, the "Holidays") and, provided that
the Premises are used exclusively as offices and are kept reasonably in order
by Tenant, janitorial services during the times and in the manner that such
services are customarily furnished in comparable office buildings in the market
area of the Project but not less than the services shown on Exhibit "H". If
Landlord elects to provide additional or after-hours heating, ventilation, air
conditioning or any of the other utilities or services referred to above at
Tenant's request, Tenant shall pay to Landlord an amount equal to Landlord's
actual costs per hour (plus an allocable charge for depreciation of equipment)
or such other reasonable charge therefor as determined by Landlord from time to
time. Tenant shall keep and cause to be kept closed all window coverings when
necessary because of the sun's position, and Tenant also shall at all times
cooperate fully with Landlord and abide by all the regulations and requirements
which Landlord may prescribe for the proper functioning and protection of the
heating, ventilation and air conditioning system. If any heat-generating
machine, excess lighting or equipment in the Premises affects the temperature
otherwise maintained by the air conditioning system, Landlord may install (or
at Tenant's request shall install) supplementary air conditioning units in the
Premises, and the cost thereof (including, but not limited to, the cost of
installation, operation and maintenance thereof) shall be paid by Tenant to
Landlord upon demand by Landlord.

                  13.2     Notwithstanding the last sentence of Section 13.1.
above, Tenant shall not, without the prior written consent of Landlord, use in
the Premises any apparatus, device, machine or equipment using excess lighting,
electricity or water; nor shall Tenant connect any apparatus or device to
sources of electrical current or water except through existing electrical
outlets or water pipes in the Premises. If Tenant shall require excess
electricity, or water or any other resource in excess of that customarily
supplied for use of similar premises as general office space, Tenant shall
first request the consent of Landlord and obtain, at Tenant's sole cost and
expense, any additional consent required from governmental authorities. In the
event that Landlord gives its consent and any such additional consent is
obtained, Landlord may cause a separate metering device to be installed in the
Premises so as to measure the amount of the resource consumed within the
Premises. The cost of any such separate metering device including, but not
limited to, the cost of installation, maintenance and repair thereof shall be
paid by Tenant. Tenant shall promptly pay the cost of all excess resources
consumed within the Premises, together with any additional administrative
expense incurred by Landlord in connection therewith. For purposes of the
foregoing, excess electricity shall be deemed to consist of any amount in
excess of 3 watts at 120/208 volts per usable square foot on an annualized
basis for lighting and 1.5 watts at 277/480 volts per usable square foot on an
annualized basis for purposes other than lighting.

                  13.3     Landlord shall not be in default hereunder or be
liable for any damages directly or indirectly resulting from any interruption
of utilities or services caused by (i) the installation or repair of any
equipment in connection with the furnishing of utilities or services, (ii) acts
of God or the elements, labor disturbances of any character, any other
accidents or any other conditions beyond the reasonable control of Landlord, or
by the making of repairs or improvements to the Premises or the Project, or
(iii) the limitation, curtailment, rationing or restriction imposed by any
governmental agency or service or utility supplier on use of water or
electricity, gas or any other form of energy or any other service or utility
whatsoever serving the Premises or the Project. Furthermore, Landlord shall be
entitled, without any obligation or compensation to Tenant, to cooperate
voluntarily in a reasonable manner with the efforts of national, state or local
governmental agencies or service or utility suppliers in reducing the
consumption of energy or

                                       18
<PAGE>   19

other resources; if Landlord shall so cooperate, Tenant shall also reasonably
cooperate therewith.

                  13.4     Any sums payable under this Section 13 shall be
considered additional rent and may be added to any installment of rent
thereafter becoming due, and Landlord shall have the same remedies for a default
in payment of such sums as for a default in the payment of rent.

         14.      TENANT'S CERTIFICATE.

                  Within ten (10) days after delivery of the Premises to Tenant
and thereafter within ten (10) days after any written request which Landlord
may make from time to time, Tenant shall execute and deliver to Landlord a
certificate (the "Certificate") substantially in the form attached hereto as
Exhibit "F" and hereby made a part hereof, together with such financial
information relating to Tenant or any guarantor as Landlord or any prospective
purchaser or lender may reasonably request. Landlord shall have the right to
request that Tenant agree to amend or otherwise supplement the Certificate to
include such other information and provisions as may reasonably be requested by
any existing or prospective lender or by any prospective purchaser. Any failure
by Tenant to so execute and deliver the Certificate shall, at Landlords
election, constitute a certification by Tenant that the statements included in
the Certificate (as same may have been so amended or supplemented) are true and
correct, except as Landlord shall otherwise indicate. Landlord and Tenant
intend that the Certificate may be relied upon by any existing or prospective
lender or by any prospective purchaser.

         15.      HOLDING OVER.

                  If Tenant, with Landlord's written consent, remains in
possession of all or any portion of the Premises after the expiration or sooner
termination of the term hereof, such holding over shall be deemed to constitute
a tenancy from month to month only, upon such terms and conditions hereof as
could be reasonably and logically construed as applying thereto; provided,
however, that during such holding over, Base Rent shall be one hundred fifty
percent (150%) of the Base Rent in effect immediately prior to such expiration
or termination, and any and all options and rights of first refusal or other
preferential rights of Tenant shall be deemed to have lapsed and to be of no
further force or effect. Landlord may terminate such tenancy from month to
month by giving to Tenant at least seven (7) days' written notice thereof at
any time. Acceptance by Landlord of any rent after such expiration or
termination shall not be deemed to constitute Landlord's consent to such
holding over.

         16.      SUBORDINATION; REQUIREMENTS OF LENDERS.

                  16.1     Without the necessity of any additional document
being executed by Tenant for the purpose of effecting a subordination, this
Lease shall be subject and subordinate at all times to (a) all ground leases or
underlying leases which may now exist or hereafter be executed affecting all or
any portion of the Project, and (b) the lien of any mortgage or deed of trust
which may now exist or hereafter be executed affecting all or any portion of the
Project, provided that such ground lease, underlying lease, mortgage or deed of
trust is approved by the mortgagor under a first mortgage or the beneficiary
under a first deed of trust, as the case may be, encumbering the Building and
provided further that the Tenant is granted usual and customary non-disturbance
rights which are acceptable to Tenant, in its reasonable discretion.
Notwithstanding the foregoing, Landlord shall have the right to subordinate or
cause to be subordinated any such ground leases or underlying leases or any such
liens to this Lease. In the event that any ground lease or underlying lease
terminates for any reason or any mortgage or deed of trust is foreclosed or a
deed in lieu of foreclosure is made for any reason, Tenant shall,
notwithstanding any subordination, attorn to and become the Tenant of the
successor in interest to Landlord. So long as Tenant is not in default under
this Lease, Tenant's possession of the Premises and all of Tenant's rights under
this Lease shall not be disturbed or altered as a result of such termination,
foreclosure or deed in lieu of foreclosure. Tenant covenants and agrees to
execute and deliver, upon demand by Landlord or any lienholder or successor in
interest, any additional documents evidencing the priority or subordination of
this Lease and the attornment of Tenant with respect to any such ground leases
or underlying leases or the lien of any such mortgage or deed or trust subject
always to Tenant's obtaining such usual and customary non-disturbance rights
which are acceptable to Tenant, in its reasonable discretion.

                  16.2     If, in connection with the obtainment of financing
for the Project or any portion

                                       19
<PAGE>   20

thereof, the lender requests reasonable modifications hereto as a condition to
the furnishing of such financing, Tenant shall not unreasonably withhold or
delay its consent thereto, provided that such modifications do not materially
increase the obligations of Tenant hereunder or materially adversely affect
Tenant's rights hereunder.

         17.      RULES AND REGULATIONS.

                  Tenant shall observe and comply with the rules and
regulations set forth in Exhibit "G" attached hereto and hereby made a part
hereof and any and all reasonable modifications thereof and additions thereto
from time to time established by Landlord. In the event of any conflict between
said rules and regulations and the other provisions hereof, the latter shall
control.

         18.      ACCESS BY LANDLORD.

                  Landlord reserves, and Landlord (and its agents, contractors
and employees) shall at reasonable times have, the right to enter the Premises
to inspect same, to supply janitor service and any other service to be provided
by Landlord to Tenant hereunder, to show the Premises to any prospective
purchaser, beneficiary, mortgagee or tenant, to post notices of
nonresponsibility, and to make any alteration, improvement or repair to the
Premises or any portion of the Building, without abatement of rent, and may for
that purpose erect, use and maintain scaffolding, pipes, conduits and other
necessary structures in and through the Premises where reasonably required by
the character of the work to be performed, provided that entrance to the
Premises shall not be blocked thereby, and further provided that the business
of Tenant shall not be interfered with unreasonably. Except in the case of
Landlord's negligence or willful misconduct, Tenant hereby waives any claim for
damages for any injury or inconvenience to or interference with Tenant's
business, any loss of occupancy or quiet enjoyment of the Premises, and any
other loss occasioned thereby. For each of the aforesaid purposes, Landlord
shall at all times have and retain a key with which to unlock all of the doors
in, upon and about the Premises, excluding Tenant's vaults and safes, and
Landlord shall have the right to use any and all means which Landlord may deem
necessary or proper to open said doors in an emergency, in order to obtain
entry to any portion of the Premises, and any entry to the Premises or portions
thereof obtained by Landlord by any of such means or otherwise shall not under
any circumstances be construed or deemed to be a forcible or unlawful entry
into, or a detainer of, the Premises, or an eviction, actual or constructive,
of Tenant from the Premises or any portion thereof. With the Tenant's consent
not to be unreasonably withheld, conditioned or delayed, Landlord shall also
have the right at any time, without same constituting an actual or constructive
eviction and without incurring any liability to Tenant therefor, to change the
arrangement and/or location of entrances or passageways, doors and doorways,
and corridors, elevators, stairs, toilets or other public parts of the
Building, provided that such changes do not unreasonably interfere with the
suitability of the Premises for Tenant's use as provided in Section 5 above.

         19.      DEFAULT BY TENANT.

                  The occurrence of any of the following shall constitute a
breach of, and default under, this Lease by Tenant:

                  19.1     Failure by Tenant to pay any amount (including,
without limitation, monthly installments of Base Rent and Additional Rent) when
and as same becomes payable in accordance with the provisions of this Lease,
and the continuation of such failure for a period of ten (10) days.

                  19.2     Failure by Tenant in the due, prompt and complete
performance or observance of any other express or implied covenant, agreement
or obligation of Tenant contained in this Lease, and the continuation of such
failure for a period of thirty (30) days after written notice from Landlord to
Tenant specifying the nature of such failure; provided, however, that if any
such failure not involving a hazardous condition cannot reasonably be cured
within such period, Tenant shall not be deemed to be in default hereunder if
Tenant promptly commences such cure within such period and thereafter
diligently pursues such cure to completion within a reasonable time but, in no
event, more than one hundred twenty (120) days after such notice.

                  19.3     Tenant's vacating, abandoning or failing to accept
tender of possession of the

                                       20
<PAGE>   21

Premises or any significant portion thereof.

                  19.4     Any financial statement or any representation given
to Landlord by Tenant, or any assignee, sublessee or successor of Tenant or any
guarantor of this Lease, proves to be materially false or misleading.

                  19.5     The insolvency of Tenant; the making by Tenant of any
assignment for the benefit of creditors; the filing by or against Tenant of a
petition to have Tenant adjudged bankrupt or of a petition for reorganization or
arrangement under any law relating to bankruptcy, insolvency or creditors'
rights in general (unless in the case of a petition filed against Tenant, the
same is dismissed within sixty (60) days); the appointment of a trustee or
receiver to take possession of all or a substantial part of Tenant's assets or
of Tenant's interest under this Lease, where such seizure is not discharged
within sixty (60) days. The occurrence of any of the acts or events referred to
in this subsection with respect to any guarantor of this Lease, if any, shall
also constitute a default hereunder.

                  19.6     The attachment, execution or other judicial seizure
of a substantial portion of Tenant's assets or of Tenant's interest in this
Lease, where such seizure is not discharged within sixty (60) days.

                  19.7     Tenant's failure to cause to be released any
mechanics' liens filed against the Premises or the Project as required in the
Lease.

                  19.8 Tenant's failure to observe or perform according to the
provisions of Section 14 and Section 16 hereof within two (2) business days
after notice from Landlord.

         20.      REMEDIES OF LANDLORD.

                  20.1     In the event of Tenant's breach of or default under
this Lease as provided in Section 19 above, Landlord, at Landlord's option, and
without limiting Landlord in the exercise of any other right or remedy Landlord
may have on account of such default, and without any further demand or notice,
may terminate Tenant's right to possession of the Premises by any lawful means,
in which case this Lease and the term hereof shall terminate and Tenant shall
immediately surrender possession of the Premises to Landlord.

                  20.2     If Landlord terminates this Lease as provided in
Section 20.1. above, Landlord shall be entitled to recover from Tenant the
aggregate of all amounts permitted by law including, but not limited to:

                  20.2.1   The worth at the time of award of the unpaid rent
and charges equivalent to rent earned as of the date of the termination hereof;
plus

                  20.2.2   The worth at the time of award of the amount by
which the unpaid rent and charges equivalent to rent which would have been
earned after the date of termination hereof until the time of award exceeds the
amount of such rental loss that Tenant proves could have been reasonably
avoided; plus

                  20.2.3   The worth at the time of award of the amount by
which the unpaid rent and charges equivalent to rent for the balance of the
term hereof after the time of award exceeds the amount of such rental loss that
Tenant proves could have been reasonably avoided; plus

                  20.2.4   Any other amount necessary to compensate Landlord
for the detriment proximately caused by Tenant's failure to perform its
obligations under this Lease or which, in the ordinary course of things, would
be likely to result therefrom, specifically including, but not limited to, the
cost of recovering possession of the Premises, expenses of releasing, including
necessary renovation and alteration of the Premises, reasonable attorneys'
fees, any real estate commissions actually paid by Landlord and the unamortized
value of any free rent, reduced rent, tenant improvement allowance or other
economic concessions provided by Landlord.

                  For purposes of this Section,  the "time of award" shall mean
the date upon which the judgment in any action brought by Landlord against
Tenant by reason of such default is entered or such earlier date as the court
may determine; the "worth at the time of award" of the

                                      21
<PAGE>   22

amounts referred to in Sections 20.2.1. and 20.2.2. shall be computed by
allowing interest at the Interest Rate, but not less than the legal rate; and
the "worth at the time of award" of the amount referred to in Section 20.2.3.
shall be computed by discounting such amount at the discount rate of the
Federal Reserve Bank at the time of the award plus one percent (1%).

                  20.3     Nothing in this Section 20 shall prevent Landlord,
in the event of Tenant's breach or default under this Lease as provided in
Section 19 above, at Landlord's option, and without limiting Landlord in the
exercise of any other right or remedy Landlord may have on account of such
default, and without any further demand or notice, maintain Tenant's right of
possession in which event Landlord shall have the remedy which permits Landlord
to continue this Lease in effect after Tenant's breach and abandonment and
recover rent as it becomes due.

                  20.4     Nothing in this Section 20, and no termination
pursuant to any other provision of this Lease, shall be deemed to affect
Landlord's right to indemnification for liability or liabilities arising prior
to the termination of this Lease under the indemnification clause or clauses
contained in this Lease.

                  20.5     If Tenant abandons or vacates the Premises, Landlord,
at Landlord's option and without limiting Landlord in the exercise of any other
right or remedy Landlord may have on account of such default, will also have
the right to re-enter the Premises such re-entry shall not be deemed to
constitute Landlord's election to accept surrender of the Premises or to
relieve Tenant from liability for its breach of this Lease. No surrender of the
Premises shall be effective against Landlord unless Landlord has entered into a
written agreement with tenant in which Landlord expressly agrees to (a) accept
a surrender of the Premises and (b) relieve Tenant of liability under this
Lease. The deliver of keys to Landlord or any employee or agent of Landlord
shall not constitute the termination of the Lease or the surrender of the
Premises. Accordingly, if Landlord does not elect to terminate this Lease on
account of any default by Tenant, Landlord may, from time to time, without
terminating this Lease, enforce all of its rights and remedies under this
Lease, including the right to recover all rent as it becomes due.

                  20.6     The terms "rent" and "rental", as used in this
Section 20 and in any and all other provisions of this Lease, shall mean Base
Rent, Additional Rent and any and all other amounts payable by Tenant pursuant
to the provisions of this Lease.

                  20.7     All rights, powers and remedies of Landlord hereunder
and under any other agreement now or hereafter in force between Landlord and
Tenant shall be cumulative and not alternative and shall be in addition to all
rights, powers and remedies given to Landlord at law or in equity. The exercise
of any one or more of such rights or remedies shall not impair Landlord's right
to exercise any other right or remedy including, without limitation, any and
all rights and remedies of Landlord under Tennessee law.

                  20.8     Tenant hereby assigns and transfers to Landlord all
of Tenant's interest in all rent and income arising from any sublease
heretofore or hereafter made, and Landlord may collect such rent and income (or
appoint a receiver to collect such rent and income) and apply same toward
Tenant's obligations under this Lease; provided, however, that until Tenant
shall be in default hereunder, Tenant may receive, collect and enjoy the rent
and income accruing under such sublease.

                  20.9     To the extent permitted by law, Tenant hereby waives
all provisions of, or protection under, any decisions, statutes, rules,
regulations or other laws of the State of Tennessee to the extent same are
inconsistent and in conflict with specific terms and provisions hereof.

                  20.10    If at any time during the term hereof Tenant fails,
refuses or neglects to do any of the things herein provided to be done by
Tenant, Landlord shall have the right, but not the obligation, to do the same,
but at the expense and for the account of Tenant. The amount of any money so
expended or obligations so incurred by Landlord, together with interest thereon
at the Interest Rate, shall be repaid to Landlord within five (5) days of
Tenant's receipt of written notice, and unless so paid shall be added to the
next monthly rental payment coming due hereunder.

         21.      DEFAULT BY LANDLORD; LIMITATION OF LIABILITY.

                                      22
<PAGE>   23

                  21.1     Landlord shall not be deemed to be in default
hereunder unless obligations required of Landlord hereunder are not performed
by Landlord, or by any beneficiary under any deed of trust, mortgagee, ground
lessor or other lienholder with rights in all or any portion of the Project,
within thirty (30) days after written notice thereof by Tenant to Landlord (or
such shorter time if any provided elsewhere in this Lease) and to such other
parties whose names and addresses are furnished to Tenant in writing, which
notice specifies that there has been a failure to perform such obligations;
provided, however, that if the nature of such obligations is such that more
than thirty (30) days are reasonably required for their cure, Landlord shall
not be deemed to be in default hereunder if Landlord or any of such other
parties commences such cure within such period and thereafter diligently
prosecutes such cure to completion within a reasonable time but, in no event,
more than one hundred twenty (120) days after such notice.

                  21.2     If Landlord is in default hereunder, which default is
not cured during any applicable cure periods, Tenant shall have all such rights
and remedies as may be afforded in this Lease or otherwise provided at law or
in equity, including, but not limited to, the right to terminate this Lease as
set forth in Section 2.1 for failure to deliver the Premises on a timely basis.
If Tenant obtains a judgment against Landlord, such judgment may be satisfied
only out of the proceeds of sale received upon execution of such judgment and
levy against the right, title and interest of Landlord in the Project and out
of the rent or other revenue receivable by Landlord from the Project or out of
any proceeds receivable by the Landlord from the sale or other disposition of
all or any portion of Landlord's right, title and interest in the Project.
Neither Landlord nor any of the partners comprising Landlord shall be
personally liable for any deficiency or otherwise.

         22.      DAMAGE AND DESTRUCTION.

                  22.1     If the Premises or the Project is damaged by an
insured casualty, occurring more than six (6) months prior to the expiration of
the term hereof, Landlord shall forthwith repair same, or cause same to be
repaired, to the extent that insurance proceeds are made available to Landlord
therefor and provided that such repairs can, in Landlord's reasonable opinion,
be made within ninety (90) days from the date of such damage (without payment
of overtime or other premiums) under the laws and regulations of the federal,
state and local governmental authorities having jurisdiction thereof. Tenant
hereby acknowledges that Landlord's right to proceeds under the property
insurance policies described in Section 12.2. above shall be subject to the
rights of any mortgagees, trust deed holders or other secured parties having an
interest in the Building. If Landlord is not so required to repair such damage,
Landlord shall have the option within thirty (30) days from the date of such
damage either to (i) notify Tenant of Landlord's election to repair such
damage, in which event Landlord shall thereafter repair same, or (ii) notify
Tenant of Landlord's election to immediately terminate this Lease, in which
event this Lease shall be so terminated. Landlord shall refund to Tenant any
rent previously paid for any period of time subsequent to such termination.
Notwithstanding any contrary provision herein, and regardless of whether caused
by casualty, (a) Landlord shall not be required to repair any damage to the
property of Tenant or to repair or replace any paneling, decorations, railings,
floor coverings, alterations, additions, fixtures or improvements installed on
the Premises by or at the expense of Tenant, and (b) any damage caused by the
negligence or willful misconduct of Tenant or any of its agents, contractors,
employees, invitees or guests shall be promptly repaired by Tenant, at its sole
cost and expense, to the reasonable satisfaction of Landlord.

                  22.2     If Landlord repairs damage to the Premises pursuant
to the provisions of Section 22.1. above, Base Rent and Additional Rent payable
hereunder until such repairs are completed shall be abated in the proportion
that the rentable area of the portion, if any, of the Premises rendered
unusable by Tenant (and therefore not used thereby) bears to the rentable area
of the Premises; a material portion of the Premises is so rendered unusable for
more than fifteen (15) consecutive business days after notice thereof by Tenant
to Landlord. Except for such rental abatement, Tenant shall have no claim
against Landlord with respect to any such damage or repairs.

         23.      EMINENT DOMAIN.

                  If the entire  Premises,  or so much thereof (but not less
than 25% of the rentable area of the Premises) as to render the balance thereof
not reasonably usable for the conduct of

                                      23
<PAGE>   24

Tenant's business, shall be taken or appropriated under the power of eminent
domain or conveyed in lieu thereof, either party hereto may, by serving written
notice upon the other party hereto within thirty (30) days thereafter,
immediately terminate this Lease. If any substantial part of the Project
excluding the Premises shall be taken or appropriated under the power of
eminent domain or conveyed in lieu thereof, Landlord may so terminate this
Lease. In either of such events, Landlord shall receive (and Tenant shall
assign to Landlord upon demand by Landlord) any income, rent, award or any
interest therein which may be paid in connection therewith, and Tenant shall
have no claim against Landlord for any part of any sum so paid, whether or not
attributable to the value of the unexpired term of this Lease. If a part of the
Premises shall be so taken, appropriated or conveyed and neither party hereto
shall elect to so terminate this Lease, (a) Base Rent and Additional Rent
payable hereunder shall be abated in the proportion that the rentable area of
the portion of the Premises so taken, appropriated or conveyed bears to the
rentable area of the entire Premises, and (b) if the Premises shall have been
damaged as a consequence of such partial taking, appropriation or conveyance,
Landlord shall, to the extent of any severance damages received by Landlord,
restore the Premises continuing under this Lease; provided, however, that
Landlord shall not be required to repair or restore any damage to the property
of Tenant or to make any repairs to or restoration of any alterations,
additions, fixtures or improvements installed on the Premises by or at the
expense of Tenant, and Tenant shall pay any amount in excess of such severance
damages required to complete such repairs or restoration. Notwithstanding
anything to the contrary contained in this Section, if the temporary use or
occupancy of any part of the Premises shall be taken or appropriated under the
power of eminent domain or conveyed in lieu thereof during the term of this
Lease, this Lease shall be and remain unaffected by such taking, appropriation
or conveyance and Tenant shall continue to pay in full all rent payable
hereunder by Tenant during the term of this Lease; in the event of any such
temporary taking, appropriation or conveyance, Tenant shall be entitled to
receive a separate award (not reducing Landlord's award) as compensation for
loss of the use or occupancy of the Premises during the term of this Lease.

         24.      SALE BY LANDLORD.

                  If Landlord sells or transfers all or any portion of the
Project, including the Premises, Landlord shall, upon consummation of such sale
or transfer, be released from any liability relating to obligations or
covenants thereafter to be performed or observed under this Lease, and in such
event Tenant agrees to look solely to Landlord's successor in interest with
respect to any such liability provided that such release shall be effective
only if and to the extent that Landlord has fully paid and discharged any and
all liabilities and obligations owing by Landlord to Tenant prior to such
transfer, excluding, however, any of such liabilities and obligations which are
the subject of good faith contests or disputes. Landlord shall remain fully
liable for all such obligations until such are paid in full subject, in all
cases, to Landlord's right to dispute, in good faith, any of such obligations.
Landlord may transfer or credit any security deposit or prepaid rent to
Landlord's successor in interest, and upon such transfer or credit Landlord
shall be discharged from any further liability therefor.

         25.      SURRENDER OF PREMISES.

                  Tenant shall, upon the expiration or sooner termination of
the term hereof, surrender to Landlord the Premises, and all repairs, changes,
alterations, additions and improvements thereto, in good and first class order,
condition and repair, ordinary wear and tear excepted, clean and free of
debris. Tenant shall, upon the expiration or sooner termination of the term
hereof, and at Tenant's sole cost and expense, remove all movable furniture,
equipment and other personal property belonging to Tenant. Tenant shall
immediately, at its sole cost and expense, repair any damage caused by the
removal of any property. Tenant shall, upon the expiration or sooner
termination of the term hereof, deliver to Landlord all keys to all doors in,
upon and about the Premises including, but not limited to, all keys to any
vault or safe to remain on the Premises.

         26.      QUIET ENJOYMENT.

                  So long as Tenant is not in default  hereunder,  Tenant shall
have the right to the quiet and peaceful enjoyment and possession of the
Premises and the common areas during the term of this Lease, subject to the
terms and conditions of this Lease.

                                      24
<PAGE>   25

         27.      NOTICES.

                  Any notice, demand or other communication given under the
provisions of this Lease by either party hereto to the other party hereto shall
be effective only if in writing and (a) personally served, (b) mailed by United
States registered or certified mail, return receipt requested, postage prepaid,
or (c) sent by a nationally recognized courier service (such as Fed Ex) for
next-day delivery, to be confirmed in writing by such courier, addressed as set
forth in the Basic Lease Information. In the event that a different address is
furnished by either party hereto to the other party hereto in writing, notices,
demands and other communications shall thereafter be sent or delivered to the
new address. Notices, demands and other communications given in the foregoing
manner shall be deemed given when actually received or refused by the party to
whom sent, unless mailed, in which event same shall be deemed given on the day
of actual delivery as shown by the addressee's registered or certified mail
receipt or at the expiration of the third (3rd) business day after the date of
mailing, whichever first occurs.

         28.      TAXES PAYABLE BY TENANT.

                  Unless properly contested by Tenant in good faith, Tenant
shall pay before delinquency all taxes, assessments, license fees and other
charges (collectively, "taxes") that are levied and assessed against Tenant's
trade fixtures and other personal property installed or located in or on the
Premises, and that become payable during the term. On demand by Landlord,
Tenant shall furnish Landlord with satisfactory evidence of such payments. If
any taxes on Tenant's personal property are levied against Landlord or
Landlord's property, or if the assessed value of the Building and other
improvements in which the Premises are located is increased by the inclusion of
a value placed on Tenant's personal property or leasehold improvements, as
determined by Landlord, and if Landlord pays the taxes on any of these items or
the taxes based on the increased assessment of these items, Tenant, on demand,
shall immediately reimburse Landlord for the sum of the taxes levied against
Landlord, or the proportion of the taxes resulting from the increase in
Landlord's assessment. Landlord shall have the right to pay these taxes
regardless of the validity of the levy.

         29.      INTEREST AND LATE CHARGES.

                  Any amount not paid by Tenant to Landlord when due hereunder
shall bear interest at a rate (the "Interest Rate") equal to the lesser of (a)
the prime rate per annum as announced by Citibank, N.A. on the date on which
the subject payment becomes delinquent plus two (2) percentage points, or (b)
the maximum rate permitted by law, from the due date until paid, unless
otherwise specifically provided herein, but the payment of such interest shall
not excuse or cure any such failure by Tenant under this Lease. The parties
agree that it would be impracticable and extremely difficult to fix Landlord's
actual damages in such event. Such interest and late charges are separate and
cumulative and are in addition to and shall not diminish or represent a
substitute for any or all of Landlord's rights or remedies under any other
provision of this Lease.

         30.      SUCCESSORS AND ASSIGNS.

                  Subject to the  provisions of Sections 10 and 24 above,
the terms, covenants and conditions contained herein shall be binding upon and
inure to the benefit of the parties hereto and their respective heirs,
executors, administrators, successors and assigns.

         31.      ATTORNEYS' FEES.

                  In any litigation or other action arising herefrom between
any of the parties hereto, the prevailing party shall be entitled to recover
reasonable attorneys' fees and costs incurred therein. The term "prevailing
party" means the party obtaining substantially the relief sought, whether by
compromise, settlement or judgment.

         32.      LIGHT AND AIR.

                  Tenant covenants and agrees that no diminution of light, air
or view by any structure which may hereafter be erected (whether or not by
Landlord) shall entitle Tenant to any reduction of rent under this Lease,
result in any liability of Landlord to Tenant, or in any other

                                      25
<PAGE>   26

way affect this Lease or Tenant's obligations hereunder.

         33.      SIGNS AND IDENTITY.

                  INTENTIONALLY DELETED

         34.      WAIVER.

                  If Landlord  waives the  performance of any term,  covenant
or condition contained in this Lease, such waiver shall not be deemed to be a
waiver of any other breach of the same or of any other term, covenant or
condition contained herein. Furthermore, the acceptance of any payments due
from one party to the other shall not constitute a waiver of any preceding
breach by such party of any term, covenant or condition of this Lease, other
than the failure of Tenant to pay the particular amount so accepted, regardless
of knowledge of such preceding breach at the time such payment was accepted.
Failure by either party to enforce any of the terms, covenants or conditions of
this Lease for any length of time shall not be deemed to waive or to affect the
right of such party to insist thereafter upon strict performance. Waiver by
either party of any term, covenant or condition contained in this Lease may
only be made by a written document signed by such party.

         35.      BROKERS.

                  Landlord has entered into an agreement with the real estate
broker specified as Landlord's broker in the Basic Lease Information
("Landlord's Broker") pursuant to which Landlord has granted to Landlord's
Broker the exclusive right to lease space in the Building. Landlord shall pay
any commissions or fees that are payable to Landlord's Broker with respect to
this Lease in accordance with the provisions of a separate commission contract.
Landlord shall have no further or separate obligation for payment of
commissions or fees to any other real estate broker, finder or intermediary.
Tenant represents that it has not had any dealings with any real estate broker,
finder or intermediary with respect to this Lease, other than Landlord's Broker
and Tenant's broker ("Tenant's Broker"), if any, specified in the Basic Lease
Information. Any commissions or fees payable to Tenant's Broker with respect to
this Lease shall be paid exclusively by Landlord's Broker and/or Tenant.
Subject to the foregoing, each party hereto shall indemnify and hold harmless
the other party hereto from and against any and all damages, liabilities,
losses, costs and expenses (including, but not limited to, reasonable
attorneys' fees and related costs) resulting from any claims that may be
asserted against such other party by any real estate broker, finder or
intermediary arising from any act of the indemnifying party in connection with
this Lease.

         36.      AUTHORITY.

                  If Tenant is a corporation, trust or partnership, Tenant
represents and warrants that the party executing this instrument is duly
authorized to so execute and deliver this Lease. If Tenant is a corporation,
trust or partnership, it shall, within ten (10) days after execution of this
Lease, deliver to Landlord satisfactory evidence of such authority. If Tenant
is a corporation, it shall, upon demand by Landlord, also deliver to Landlord
satisfactory evidence of (a) good standing in Tenant's state of incorporation,
and (b) qualification to do business in Tennessee.

         37.      MISCELLANEOUS.

                  37.1     Landlord shall make available to Tenant, without
charge, six (6) keys to the Premises. Tenant shall pay for any additional keys
made available by Landlord.

                  37.2     Any voluntary or other surrender of this Lease by
Tenant, mutual termination hereof or termination hereof by Landlord shall not
work a merger, and shall, at the option of Landlord, terminate all or any
existing subleases or subtenancies, or may, at the option of Landlord, operate
as an assignment to Landlord of any or all such subleases or subtenancies. No
act or omission of Landlord or any representative thereof shall be deemed to
constitute acceptance of any surrender, and no surrender shall be deemed to
have occurred, unless in a writing executed by Landlord and approved in writing
by the mortgagee under any first mortgage or the beneficiary under any first
deed of trust, as the case may be, encumbering the Building.

                  37.3     A memorandum hereof, including Tenant's rights of
first offer with respect to

                                      26
<PAGE>   27

certain leased premises within the Building and Tenant's right of first refusal
to purchase the Project, shall be recorded.

                  37.4     Rent and all other sums payable under this Lease
must be paid in lawful money of the United States of America.

                  37.5     None of Landlord's rights or remedies hereunder
shall be deemed to be exclusive, but shall, wherever possible, be cumulative
with all other rights and remedies hereunder and at law and in equity.

                  37.6     Except as otherwise provided herein, whenever in
this Lease a consent is to be granted by either Landlord or Tenant, such
provisions shall be deemed to include language to the effect that such consent
shall not be unreasonably withheld, delayed or conditioned by the party
required to grant or deny such consent. If consent is to be withheld, the party
withholding such consent shall, upon request, provide a written statement
specifying the reasons for withholding such consent and identifying alternative
circumstances, if any, under which such consent might be obtained.

                  37.7     This Lease may be executed in counterparts with the
same effect as if both parties hereto had executed the same document. Both
counterparts shall be construed together and shall constitute a single lease.

                  37.8     Nothing contained in this Lease shall be construed
to create the relationship of principal and agent, partnership, joint venture
or any other relationship between the parties hereto, other than the
relationship of landlord and tenant.

                  37.9     Any provision of this Lease which shall prove to be
invalid, void or illegal shall in no way affect, impair or invalidate any other
provision hereof, and such other provisions shall remain in full force and
effect.

                  37.10    The term "Premises" shall be deemed to include
(unless, based on the context, such meaning would be clearly unintended) the
space demised and improvements now or at any time hereafter comprising or built
in such space.

                  37.11    The term "Tenant" or any pronoun used in place
thereof shall indicate and include the masculine or feminine, the singular or
plural number, individuals, firms or corporations.

                  37.12    The section headings herein are for convenience of
reference only and shall in no way define, increase, limit or describe the
scope or intent of any provision of this Lease.

                  37.13    In any case where this Lease is entered into by
co-tenants, the obligations of such co-tenants hereunder shall be joint and
several.

                  37.14    Time is of the essence of this Lease and all of its
provisions.

                  37.15    This Lease shall in all respects be governed by the
laws of the State of Tennessee. In any action or proceeding arising herefrom,
Tenant hereby consents to the jurisdiction of any competent court within the
State of Tennessee and to service of process by any means authorized by
Tennessee law.

                  37.16    This Lease contains the entire agreement of the
parties hereto with respect to the subject matter hereof and supersedes any
previous negotiations. There have been no representations made by Landlord or
any representative thereof or understandings made between the parties other
than those set forth in this Lease.

                  37.17    This Lease may not be modified except by a written
document executed by the parties hereto.

                  37.18 Neither Landlord nor any broker, agent or representative
thereof has made any warranty or representation with respect to the tenant mix
of the Building, the identity of prospective or other tenants of the Building,
or profitability.

                  37.19    If any guarantee of this Lease is required by
Landlord, such guarantee shall be in form and content acceptable to Landlord.

                                      27
<PAGE>   28

                  37.20    The words "person" and "persons" as used herein
shall include individuals, firms, partnerships, associations and corporations.

                  37.21    The language in all parts of this Lease shall be in
all cases construed simply according to its fair meaning, and not strictly for
or against Landlord or Tenant. Any reference to any Section herein shall be
deemed to include all subsections thereof unless otherwise specified or
reasonably required from the context. Any reference to "days" or "months"
herein shall refer to calendar days or months, respectively, unless
specifically provided to the contrary. Unless clearly inconsistent with the
context, any reference herein to "the term hereof" or "the term of this Lease"
shall refer to the term of this Lease as the same may be extended pursuant to
any extension options(s) contained herein. The terms "herein", "hereunder" and
"hereof" as used in this Lease shall mean "in this Lease", "under this Lease"
and "of this Lease", respectively, except as otherwise specifically set forth
in this Lease.

                  37.22    Any and all exhibits and addenda referred to in this
Lease are incorporated herein by reference as though fully set forth herein.

                  37.23    Tenant hereby acknowledges and agrees that the
exterior walls of the Building and the area between the finished ceilings of
the Premises and the slab of the floor of the Building thereabove have not been
demised hereby. Except as reasonably necessary for the installation,
maintenance, repair or replacement of certain of the Tenant's personal property
including but not limited to wiring, conduits, electrical or electronic
equipment, computer hardware, servers, cables, or other equipment and
facilities used or useable in Tenant's business, the use thereof, together with
the right to install, maintain, use, repair and replace pipes, ducts, conduits
and wires leading through, under or above the Premises, is hereby excepted and
reserved unto Landlord. To accommodate Tenant's rights relative to such areas,
Landlord grants to Tenant a non-exclusive license to access such areas from
time to time as necessary for the foregoing purposes provided that Tenant shall
be responsible for any damage caused by such access and shall not alter any
Building systems in such areas without Landlord's consent.

                  37.24    Tenant and Landlord hereby warrants and represents
that neither its execution of nor performance under this Lease shall cause it
to be in violation of any agreement, instrument, contract, law, rule or
regulation by which either is bound, and each agrees to indemnify the other
against any loss, cost, damage or liability including, without limitation,
reasonable attorneys' fees arising out of such breach of this warranty and
representation.

                  37.25    Rent shall not be abated, nor may this Lease be
terminated by Tenant, except as may otherwise be expressly provided herein or
as determined by a court of law.

                  37.26    Tenant covenants by and for itself, its successors
and assigns, and all persons claiming under or through them, and this Lease is
made and accepted upon and subject to the following conditions: That there
shall be no discrimination against or segregation of any person or group of
persons, on account of sex, marital status, age, race, color, religion, creed,
national origin or ancestry, in the leasing, subleasing, renting, transferring,
use, occupancy, tenure or enjoyment of the Premises herein leased, nor shall
Tenant itself, or any person claiming under or through it, establish or permit
such practice or practices of discrimination or segregation with reference to
the selection, location, number, use or occupancy of tenants, lessees,
sublessees, subtenants or vendees in the Premises.

                  37.27    Landlord and Tenant each acknowledge that it has
retained counsel to represent it with respect to this Lease; Landlord and
Tenant have each read and understand this Lease; Landlord and Tenant have each
been advised by its counsel with respect to its rights and obligations under
this Agreement; and the principal of construction against draftsmen shall have
no application in the interpretation of this Lease.

                  37.28    Tenant acknowledges and agrees that the terms of this
Lease are confidential and constitute proprietary information of Landlord.
Disclosure of the terms hereof may adversely affect the ability of Landlord to
negotiate other leases and impair Landlord's relationship with other tenants.
Accordingly, except as required by law or reasonably necessary in connection
with Tenant's business including by way of illustration and not limitation in
connection with Tenant's IPO. Tenant agrees that it, and its partners,
officers, directors, employees, agents and attorneys, shall not intentionally
and voluntarily disclose the terms and conditions of this Lease to any

                                      28
<PAGE>   29

newspaper or other publication or any other tenant or apparent prospective
tenant of the Building or the Project or any real estate agent (other than the
broker(s) identified in the Basic Lease Information), either directly or
indirectly, without the prior written consent of Landlord; provided further,
however, that Tenant may disclose the terms to prospective subtenants or
assignees under this Lease and to its attorneys and accountants on a
"need-to-know" basis, provided all of the same are instructed as to the
confidentiality hereof."

                  37.29    The submission of this Lease by Landlord or its
agent or representative for examination or execution by Tenant does not
constitute an option or offer to lease the Premises upon the terms and
conditions contained herein or a reservation of the Premises in favor of Tenant;
it being intended hereby that this Lease shall become effective only upon the
execution hereof by Landlord and delivery of a fully executed counterpart hereof
to Tenant.

                                      29
<PAGE>   30

                  IN WITNESS WHEREOF, the parties hereto have executed this
Lease as of the date first hereinabove set forth.

               "LANDLORD"                            "TENANT"

TRIPLE T BRENTWOOD LLC                      PRIVATE BUSINESS, INC.,
a Delaware limited liability company        a Tennessee corporation

By:  Travelers Casualty and Surety          By
     Company, a Connecticut                   ---------------------------------
     corporation                            Its
                                               --------------------------------

     By:
        ----------------------------------

     Its:
         ---------------------------------

                  THIS LEASE HAS BEEN PREPARED FOR TENANT'S REVIEW AND FOR
TENANT'S SUBMISSION TO ITS LEGAL AND/OR TAX CONSULTANT. NO REPRESENTATION OR
RECOMMENDATION IS MADE BY LANDLORD OR BROKER, OR THE AGENTS OR EMPLOYEES OF
EITHER, AS TO THE LEGAL SUFFICIENCY, LEGAL EFFECT OR TAX CONSEQUENCES OF THIS
LEASE OR THE TRANSACTIONS RELATING HERETO.

                                      30
<PAGE>   31
                                    ADDENDUM

                  This Addendum is attached to and made a part of that certain
Lease ("Lease") dated __________________, between Triple T Brentwood LLC, as
Landlord, and Private Business Partners, Inc., as Tenant, relating to premises
located at Overlook Park, Brentwood, Tennessee. This Addendum shall supplement
and amend the Lease, and the provisions set forth below shall supersede any
inconsistent provisions set forth in the Lease. To the extent possible, the
provisions set forth below have been numbered to coincide with the numbered
sections of the Lease to which they relate. Except as may otherwise be
specifically provided below, any terms used below which are defined in the
Lease shall have their respective meanings set forth in the Lease.

         38. Extension Option.

                  (a) Tenant shall have the right to extend the term of this
Lease for two five (5) year extensions of the term of this Lease upon prior
written notice ("Tenant's Election") to Landlord given not sooner than twelve
(12) months prior to the expiration of the then existing term of this Lease;
provided, however, that at the time Tenant gives Tenant's Election Notice to
Landlord and for the remainder of the then existing term of this Lease there is
no material of default by Tenant under this Lease. During such extension
period, the provisions of this Lease, as it may be amended in writing prior to
the date of the commencement of such extension period, shall continue in
effect, except that Tenant shall occupy the Premises in their then "AS-IS"
condition and there shall be no abatement of rent, nor shall there be credit or
allowance given to Tenant for improvements to the Premises. The Base Rent will
be an amount equal to ninety-five percent (95%) of the Fair Market Value Rate
if no commission is payable to any person (other than Landlord's Broker) and
one hundred percent (100%) thereof if any commission is payable to any person
(other than Landlord's Broker) as a result of Tenant's exercise of such
options; provided, however, in no event shall the Base Rent for such extension
period be less than the Base Rent due for the last month of the initial term of
the Lease. It is understood and agreed that Tenant's delivery of Tenant's
Election Notice shall bind Tenant to such extension subject to the agreement of
the parties with respect to rent.

                  "Fair Market Value Rate" shall mean the annual amount per
rentable square foot then being charged during the term of any new leases for
delivery on or about the applicable delivery or effective date for comparable
non-sublease, non-encumbered (i.e., not affected by any options to expand,
contract or extend or rights of first refusal or rights of first offer),
non-equity space and comparable office buildings in the general vicinity in
Brentwood, Tennessee which buildings have been similarly improved ("Qualified
Buildings"), taking into consideration annual rental, rates per rentable square
foot, the type of escalation and clauses (including but without limitation
operating expense, real estate tax, CPI or other adjustments), the floor level
on which the Leased Premises are located, tenant improvements or allowances
therefore provided by Landlord or to be provided for such comparable space,
parking arrangements, rental abatement or other concessions, if any, the length
of the relevant term, the extent of services to be provided to the leased
premises, the date as to which the term is to become effective, and any other
relevant terms and conditions.

         39. Right of Offer - First Floor and Second Floor.

                  Tenant's rights described in this Section 39 are subject to
Travelers _________ ("Travelers") right of first offer to lease (and re-lease,
as the case may be) any space in the Building upon receipt of written notice
from Landlord describing the premises then available and the terms and
conditions upon which Landlord is offering to lease (or re-lease, as the case
may be) such premises, all in accordance with that certain Lease dated as of
_____________, 1999 between Landlord and Travelers. If Landlord elects to lease
any then unleased portion of the first and second floors of the Building,
Landlord shall notify Tenant, in writing, of such space and the terms and
conditions on which Landlord is willing to lease such space, which terms and
conditions shall be comparable to the terms and conditions Landlord proposes to
offer to prospective third party tenants. Landlord shall not rent such space to
any third party on terms less favorable than the terms and conditions offered
to Tenant. Within ten (10) business days after Tenant's receipt of Landlord's
offer to lease, Tenant shall notify Landlord, in writing, of Tenant's desire to
lease or not to lease the subject space. If Tenant

                                      31
<PAGE>   32

notifies Landlord that Tenant does not wish to lease such space or if Tenant
does not deliver a written notification to Landlord within the time period
specified, Tenant's rights hereunder shall terminate until the space again
becomes available and Landlord shall have the right to lease such space to any
person; provided, however, that if Landlord subsequently determines to offer
such space to a third party or parties on terms which are materially more
favorable than the terms previously offered to Tenant, then the foregoing right
of first offer shall once again be applicable, and the Landlord shall not lease
such space to a third party until Landlord has resubmitted Landlord's offer to
lease to Tenant. For purposes of the preceding sentence, the phrase "materially
more favorable than the terms previously offered to Tenant, then the foregoing
right of first offer shall once again be applicable, and the Landlord shall not
lease space to a third party until Landlord has resubmitted Landlord's offer to
lease to Tenant. For purposes of the preceding sentence, the phrase "materially
more favorable" shall be deemed to be mean terms which reflect a Fair Market
Value Rate which is lower by more than ten percent (10%) than the rate
previously specified to Tenant or any other material favorable change of
condition.. If a third party (i.e., not a Landlord Affiliate (as defined in
Section 42 hereof)) leases any of the first and second floors of the Building,
such lease shall include, among other things, the right of Landlord to relocate
such tenant to other suitable space in the Building from and after the date on
which all rights of first refusal, first option, expansion and extension of the
tenant under the Travelers Lease have expired. Tenant shall pay the costs of
any such relocation if such relocation is necessary to accommodate Tenant's
exercise of its rights in this Section 41.

         40. Right of First Refusal to Purchase.

                  If Landlord receives a bona fide offer in writing to purchase
the Property from a third party which is not a "Landlord Affiliate" (as
hereinafter defined), Tenant shall have a right of first refusal to purchase
the Property on the same terms and conditions upon which a third party
purchaser has offered to purchase the Property. Within five (5) business days
after Landlord has provided written notification to Tenant of the terms and
conditions on which such third party purchaser has offered to purchase the
Property together with a true, complete and accurate copy of such offer as
executed by the proposed purchaser, Tenant shall notify Landlord, in writing,
of Tenant's election not to purchase the Property or, alternatively, to
purchase the Property on the same terms and conditions as such third party
purchaser is willing to purchase the Property. Tenant's failure to deliver its
written election notice to Landlord within the time period specified above
shall be deemed to be Tenant's election not to purchase the Property. If Tenant
elects to purchase the Property, the closing on Tenant's acquisition shall
occur on the later of the date specified in such offer or sixty (60) days after
Landlord's receipt of Tenant's written election to purchase.

                  For the purposes hereof, the term "Landlord Affiliate" shall
mean any entity which is a wholly-owned subsidiary, either directly or
indirectly through one or more wholly-owned subsidiaries, of Citigroup, Inc.

                                      32
<PAGE>   33

                                  EXHIBIT "A"

                                    PREMISES

                                      33
<PAGE>   34

                                  EXHIBIT "B"

                        TENANT'S DESIGNATED PARKING AREA

                                      34
<PAGE>   35

                                  EXHIBIT "C"

                       FORM OF LEASE COMMENCEMENT LETTER

Private Business, Inc.
9010 Overlook Drive
Brentwood, Tennessee 37027
Attention:  Fred Read

                  Re:      Suite #
                                  ---------

                           ------------------------
                           (the "Premises")

Gentlemen:

                  Reference is made to that certain Lease dated as of
___________, ___ (the "Lease") between Triple T Brentwood LLC, as Landlord, and
Private Business, Inc., as Tenant, for the Premises. All capitalized terms not
otherwise defined herein shall have the meanings ascribed thereto in the Lease.

                  The Commencement Date of the Lease is _____________, ____.

                  Please countersign the enclosed copy of this letter
indicating your acknowledgement of and agreement with the foregoing.

                                 TRIPLE T BRENTWOOD, LLC

                                 By:   Travelers Property and Casualty
                                       Company, a Connecticut corporation

                                       By:
                                          -------------------------------------

                                       Its:
                                           ------------------------------------

ACKNOWLEDGED AND AGREED TO THIS
_____ DAY OF ____________, ____

PRIVATE BUSINESS, INC.

By:
   ---------------------------

Its:
    --------------------------

                                      35
<PAGE>   36

                                   EXHIBIT D

                           BASE BUILDING IMPROVEMENTS

The Base Building Improvements and systems described below shall be furnished
by Landlord at Landlord's sole cost and expense. The term "Base Building
Improvements" is defined as the condition of the Premises after installation of
shell construction, but prior to commencement of construction and/or
installation of the Tenant Improvements. The Base Building Improvements
include:

1.       Compliance with all applicable codes and governing authorities.

2.       All site walkways will be concrete. All drives and parking areas will
         be asphalt paving with extruded concrete curbs. The entry plaza is
         highlighted with landscape planters and lighting.

3.       Site lighting levels will average two foot candles for all parking
         areas and one foot candle at perimeter of parking area and building.
         The finish of all site lighting fixtures shall match the aluminum
         storefront color.

4.       Two lighted monument signs will be located at each entrance drive as
         permitted pursuant to the applicable city codes for Brentwood,
         Tennessee. Individual cast letter signage will identify the building
         address.

5.       Native, select trees, shrubs, planting areas and grass will be used to
         enhance project aesthetics. All planting areas will be irrigated with
         an automatically controlled irrigation system.

6.       A separate loading area accessible to a service elevator will be
         available. This loading area will also be accessible to a common area
         mail room located on the first floor.

7.       The building structure is designed for a floor live load of 100 psf
         reducible at the core area between stair #2 and the passenger
         elevators and 80 psf reducible between core area and perimeter walls.
         The open floor space between the core area columns and perimeter wall
         columns will have a clear span. The building frame will consist of
         reinforced concrete foundations and columns with post-tensioned
         concrete floors and roof. The main lobby entrance consists of an all
         glass wall system with glass doors and custom hardware to match
         building window system. The roof will consist of a single ply, fully
         adhered EPDM roof membrane over rigid insulation. The structure will
         provide positive slope to internal roof drains. A concrete floor will
         be installed with a smooth trowel finish (in compliance with
         specifications of the American Concrete Institute) ready to accept the
         installation of glued down carpet. All floor covering within the
         Tenant's Premises will be at Tenant's cost. The floor will be poured
         level and finished in accordance with industry standards.

8.       The building shell will consist of brick veneer (similar to the
         existing PBI building adjacent to the site, subject to availability
         and cost constraints) over fully insulated metal stud wall system and
         one inch, insulated glass set in aluminum frames (window glass and
         frame to be similar in color with existing PBI building adjacent to
         site). (Landlord shall use its reasonable efforts, subject to
         availability and cost constraints, to implement Tenant's desire that
         the brick veneer and the color of the window glass and frame of the
         Building be as similar as possible to the PBI building adjacent to the
         site.) All exterior wall framing and insulation is by Landlord. All
         drywall work for interior surface of exterior walls and concrete
         column enclosures is by Tenant. The finished interior core will
         include all common area corridors, 1st floor elevator lobby, stairwell
         enclosures, men's and women's restroom facilities, drinking fountains,
         electrical, telephone, mechanical and janitorial closets. The Tenant
         side of core walls will be taped and floated drywall. The interior
         materials and finishes for the common areas for the Base Building
         Improvements will be as follows:

1ST FLOOR LOBBY

FLOORS:           Stone
WALLS:            Custom panelized wood panels
CEILINGS:         Gypsum Board
LIGHTING:         Recessed down lights and indirect lighting

                                      36
<PAGE>   37

BASE BOARD:       Wood or stone base throughout

DIRECTORY:        A building directory is provided by landlord in the entry
                  lobby. Tenant shall be allowed space on the directory for
                  individual letters, at Tenant's sole cost and expense.

COMMON AREA CORRIDORS (1ST - 4TH FLOORS)

FLOORS:           Carpet
WALLS:            Vinyl wall covering
CEILINGS:         Building standard 2x2 suspended acoustical ceiling in
                  corridors
BASE BOARD:       4" resilient cove base

PASSENGER ELEVATOR CABS

CUSTOM:           Wood panels and recessed down lighting in each elevator cab
                  with carpet floors.

RESTROOMS

FLOORS:           Ceramic tile
WALLS:            Ceramic tile Wainscot behind toilets.  Vinyl wall covering
                  elsewhere
CEILINGS:         Gypsum board accents with acoustical ceiling
LIGHTING:         Down lights and indirect fluorescent alcove lighting
PARTITIONS:       Ceiling mounted plastic laminate partitions
VANITY TOP:       Stone with porcelain bowls; full length mirror above
ACCESSORIES:      Stainless steel

DOORS

                  3'-0" wide x full height stain grade solid core wood doors
                  (clear select birch, rotary cut) in hollow metal frames with
                  ADA approved hardware.

9.       The Building will have three (3) automatic 3,000 lb. (175 ft/min)
         hydraulic passenger elevators and one (1) automatic 4,000 lb.
         hydraulic service elevator. Doors, frames, and inside trim are
         stainless steel.

10.      The Building Plumbing will include wet stacks and waste system located
         near each end of the building to facilitate Tenant requirements. The
         typical core restroom on each floor will consist of six water closets
         and four lavatories for the women's restroom and two water closets,
         three urinals, and three lavatories for the men's restroom. The
         fixtures will be porcelain with wall-hung urinals and water closets.

11.      The Heating, Ventilation and Air Conditioning Systems shall consist of
         four variable volume DX type roof top units, 88.5 ton minimum, (one
         serving each floor, average 295 RSF/ton) with scroll compressors. The
         Base Building Improvements will include medium pressure supply
         ductwork, low pressure return ductwork routed to each floor, and any
         V.A.V. or fan terminals required for the core area. No heat is planned
         for the Tenant Improvement area under the Base Building Improvements
         package. Tenant is responsible for all mechanical doct loops, branch
         lines and V.A.V. or fan terminals in Tenant's Premises. The overall
         HVAC system will be controlled by Andover DDC, a computerized, energy
         management system, utilizing space sensors with tenant adjustable set
         points of +/-5(0)F indoor design temperature of 70(0)F, year round.

12.      A life safety system will be installed, in accordance with applicable
         national, state and local codes, throughout the Building, including
         all common areas and stairwells. It will consist of sprinklers, smoke
         detectors, internal fire alarms and annunciator system, common area
         emergency lighting, common area self illuminating exit signs, fire
         department hose connections, and fire extinguishers as required by
         applicable codes. The sprinkler system will have an approved water
         flow alarm connection and tamper resistant detection device connected
         to a U.L. Listed 24 hour Central Monitoring Station, and it will
         include all distribution of mains, laterals, uprights and upright
         heads. Tenant will be responsible for all costs to drop sprinkler
         heads as required under Tenant Improvements. While Landlord will
         provide common area fire extinguishers, at Landlord's sole cost and
         expense, Tenant shall provide annual inspections, repair and or
         replacement of all fire extinguishers located within Tenant's
         Premises, as required by all applicable state, federal and local laws,
         rules, and regulations. Tenant, at its sole cost and expense, will be
         required to connect to Landlord's life safety system.

                                      37
<PAGE>   38

13.      The building electrical service will be 2500 amps. Electrical
         distribution will be provided to the main panel boxes in the
         electrical closet on each floor. Each floor will have a two-section,
         400 amp, 277/480 volt distribution panel for all mechanical units,
         tenant and shell lighting circuits and a 75 KVA transformer for tenant
         low voltage requirements. The low voltage panels shall be 225 amp,
         120/208 volt, two section for each floor. A 100 KW/125 KVA emergency
         generator will be provided to serve life safety lighting.
         Approximately 80 KW will be available for some critical tenant loads,
         distributed in proportion to the total rentable area, which Tenant
         occupies in the building. Any Tenant loads required beyond this
         allowance will be at Tenant's sole cost and expense.

14.      Telephone terminal boards and vertical raceways will be provided in
         electrical closet on each floor. Tenant telephone hardware design and
         installation shall be by Tenant, at Tenant's sole cost and expense.

15.      An electronically controlled card access control system will be
         provided. This system will control all entry areas to Tenant's
         Premises from Building exterior doors, stairwells, and elevators only.
         This system will control Tenant's Premises 24 hours a day and Building
         entrances after the normal hours of operation of the Building.

16.      The Base Building Improvements work will be similar to the attached
         site plan, S-1, floor plans, P-1, P-2, P-3, and P-4, and Building
         elevation plans, E-1 and E-2 designed by Hayden Architects. 1.

                                      38
<PAGE>   39

                                  EXHIBIT "E"

                       TENANT IMPROVEMENT WORK AGREEMENT

                  This TENANT IMPROVEMENT WORK AGREEMENT ("Agreement") is made
and entered into this _____ day of April 1999, by and between PRIVATE BUSINESS,
INC., a Tennessee corporation ("Tenant"), and TRIPLE T BRENTWOOD LLC, a
Delaware limited liability company ("Landlord")

                  A.       Landlord and Tenant have entered into a lease dated
as of April ___, 1999 (hereinafter the "Lease") for the entire rentable area of
the third and fourth floors (the "Premises") in a building to be constructed by
Landlord located in Overlook Park, Brentwood, Tennessee, and

                  B.       Certain tenant improvement work is to be completed
within the Premises; and

                  C.       All capitalized terms not otherwise defined herein
have the same meaning as ascribed thereto in the Lease.

                  NOW, THEREFORE, for and in consideration of the agreement to
lease the Premises; pay rent and mutual covenants contained herein, the parties
agree as follows:

                  1.       Tenant Improvements. Tenant improvements (the
"Tenant Improvements") means the materials, their respective quantities and the
labor to install same in the Premises in accordance with Architectural
Construction Documents and Additional Construction Documents (as defined in
Section 5 and Section 6 hereof) together with the associated architectural,
design, engineering, miscellaneous consulting services and reimbursables,
moving labor, telecommunications charges, material and labor necessary for
Tenant's relocation to the Premises.

                  2.       Tenant's Architect. Tenant has designated the firm
identified on Schedule 1 hereto as its architect (such architect or such other
architect as may be selected by Tenant in substitution for such firm subject to
Landlord's reasonable approval is referred to as "Tenant's Architect").

                  3.       Landlord's Architect. Landlord has designated the
firm identified on Schedule 2 hereto as its architect (such architect, or such
other architect as may be selected by Landlord is substitution for such firm,
is hereinafter referred to as "Landlord's Architect").

                  4.       Space Utilization Plans.

                           4.1.     As promptly as possible, Tenant will
furnish Landlord with initial space utilization plans and outline
specifications in sufficient detail for Landlord's review and approval. The
space utilization plans shall include, but shall not be limited to the
following: partition layout; door locations; electrical outlet locations and
anticipated usage; telephone outlet locations; light switching requirements;
and special lighting requirements. Tenant should also identify any area of the
Premises where: (1) the occupancy loads are expected to exceed building
standard (as defined in Exhibit D to the Lease); (2) special heating,
ventilation and air-conditioning equipment is required; (3) computer rooms and
related special areas are located; (4) floor loads or storage requirements
might exceed structural capacities; and (5) modifications might be required to
the structural, mechanical, fire protection, electrical or life safety systems.
Within ten (10) business days, Landlord shall indicate its acceptance or
rejection of such initial space utilization plans and outline specifications.
In the event Landlord rejects the same, Landlord shall advise Tenant and
Tenant's Architect of the reasons for such rejection and shall work with Tenant
and Tenant's Architect to arrive at mutually acceptable alternatives to such
plans and specifications.

                           4.2.     If, pursuant to Section 4.1. above,
Landlord rejects Tenant's initial space utilization plans, Tenant shall submit
revised space utilization plans to Landlord within ten (10) business days
following receipt by Tenant of written advice of such rejection and the reasons
therefor.

                                      39
<PAGE>   40

                           4.3.     If Tenant is required to submit revised
space utilization plans pursuant to Section 4.2. above, Landlord shall indicate
its acceptance or rejection of the revisions within ten (10) business days
following receipt by Landlord of such revised space utilization plans. In the
event Landlord rejects such revisions, Landlord shall advise Tenant and
Tenant's Architect in writing of the reasons for such rejection and shall work
with Tenant and Tenant's Architect to arrive at mutually acceptable
alternatives to such plans and specifications.

                           4.4.     Landlord shall not unreasonably withhold
its acceptance and approval of the space utilization plans or outline
specifications, or of any of the Architectural Construction Documents or
Additional Construction Documents to be prepared pursuant to Section 5 and
Section 6 hereof or Revised Plans pursuant to Section 10.4. hereof; unless the
improvements called for thereby, in Landlord's reasonable judgment, would
materially adversely affect or require material modification of the exterior,
structural, electrical, fire protection, heating, ventilating, air conditioning
or mechanical elements of the efficient operation of the Building, would
intrude into the common elements of the Building, would be visible from the
exterior of the Building or would require unreasonable entry into another
tenant's premises (a "Design Defect").

                  5.       Architectural Construction Documents.

                           5.1.     Using the space utilization plans prepared
by Tenant's Architect and approved by Landlord, Tenant shall cause Tenant's
Architect to prepare and deliver Architectural Construction Documents
("Architectural Construction Documents") to Landlord and Tenant.

                           5.2.     Within ten (10) business days following
receipt by Landlord of the Architectural Construction Documents referred to in
Paragraph 5.1. above, Landlord shall indicate its acceptance or reasonable
rejection of such Architectural Construction Documents. In the event Landlord
rejects such Architectural Construction Documents, Landlord shall advise Tenant
and Tenant's Architect in writing of the reasons for such rejection and shall
work with Tenant and Tenant's Architect to arrive at mutually acceptable
Architectural Construction Documents.

                           5.3.     If, pursuant to Section 5.2. above,
Landlord rejects Tenant's Architectural Construction Documents, Tenant shall
submit revised Architectural Construction Documents to Landlord within ten (10)
business days following receipt by Tenant of written advice of such rejection
and the reasons therefor and shall work with Tenant and Tenant's Architect to
arrive at mutually acceptable Architectural Construction Documents.

                           5.4.     If Tenant is required to submit revised
Architectural Construction Documents pursuant to Section 5.3. above, Landlord
shall indicate its acceptance or reasonable rejection of the revisions within
ten (10) business days following receipt by Landlord of such revised
Architectural Construction Documents. In the event Landlord rejects such
revisions, Landlord shall advise Tenant and Tenant's Architect in writing of
the reasons for such rejection and shall work with Tenant and Tenant's
Architect to arrive at mutually acceptable Architectural Construction
Documents.

                  6.       Additional Construction Documents. Concurrently with
the Architectural Construction Documents, Tenant's Architect shall prepare and
deliver to Landlord and Tenant the Additional Construction Documents
("Additional Construction Documents") including fire protection, heating,
ventilating, air conditioning, electrical and mechanical drawings and
specifications. Landlord shall cause Landlord's Architect and Tenant shall
cause Tenant's Architect to cooperate in the coordination of the preparation of
such Additional Construction Documents with the Building documents and
specifications, and with the preparation of such Architectural Construction
Documents pursuant to Section 5 hereof. Within ten (10) business days of
receipt of such Additional Construction Documents, Landlord shall indicate its
acceptance or reasonable rejection in writing. In the event Landlord rejects
such Additional Construction Documents, Landlord shall advise Tenant and
Tenant's Architect of the reasons for such rejection and shall work with Tenant
and Tenant's Architect to arrive at mutually acceptable versions of such
Additional Construction Documents. Tenant's Architect shall then, at the sole
cost of Tenant unless such revisions are made necessary by reason of an error
on the part of the

                                      40
<PAGE>   41

Landlord's Architect, revise such Additional Construction Documents. Revisions
shall be subject to Landlord's approval or reasonable rejection, which shall be
given in writing within ten (10) business days of receipt of such revised
Additional Construction Documents. The final Additional Construction Documents
must be approved by Landlord, not to be unreasonably withheld or delayed.
Architectural Construction Documents and Additional Construction Documents are
collectively referred to as "Construction Documents". Landlord and Tenant
agree, to the extent reasonably possible, to coordinate the review and approval
process as to each aspect of the Construction Documents so as to facilitate the
bidding process described in Section 9.2(c).

                  7.       INTENTIONALLY OMITTED

                  8.       Construction of Tenant's Improvements. Unless
otherwise agreed to in writing by Landlord and Tenant, all work involved in
construction and equipping of the Tenant Improvements shall be carried out by
the Landlord's Contractor (as defined below) under a construction contract or
contracts on AIA Form A101 (1997 Edition), amended as necessary, or on other
appropriate standard AIA forms, directly with the Landlord and under the sole
direction of the Landlord. Landlord agrees that all services and work performed
in the Premises, on behalf of, or for the account of Tenant by Landlord,
including general construction of the Tenant Improvements by the Landlord's
Contractor, shall be done in a first-class workman-like manner using only good
grades of material.

                  9.       Pricing and Bidding Procedures.

                           9.1.     Selection of Landlord's Contractor.
Landlord acknowledges that Tenant has a legitimate interest in identifying,
selecting, and using a contractor, subcontractors and suppliers reasonably
acceptable to Tenant to perform the construction of the Tenant Improvements.
Landlord shall therefore consult with Tenant in determining which contractors,
subcontractors and suppliers shall be afforded the opportunity to bid on Tenant
Improvements.

                           9.2.     General Contractor and Standards for
Competitive Bidding. Landlord shall employ a licensed General Contractor (the
"Landlord's Contractor"), subcontractors for all trades, and all suppliers
engaged to complete the Tenant Improvements. Landlord shall competitively bid
the construction contract with Landlord's Contractor and shall require that
Landlord's Contractor competitively bid all trades in accordance with the
following conditions:

                                    a)       All competitive bidding shall be
based on obtaining a minimum of three (3) competitive bids for each particular
aspects of the work.

                                    b)       Notwithstanding the foregoing,
fewer than three (3) competitive bids may be accepted by Landlord or Landlord's
Contractor, as applicable, if such items have a completed value of less than
Twenty Thousand and No/100 Dollars ($20,000.00) or if all three (3) bids cannot
be obtained within five (5) days (or such other time period as may be specified
herein) of the date of request for such bids.

                                    c)       Tenant shall cooperate with
Landlord and Landlord's Contractor to promote the efficient and expeditious
completion of all such work. Tenant shall cause Tenant's Architect to submit
final plans, drawings, information, and instructions with respect to discreet
portions or components of the Tenant Improvements as promptly as possible upon
completion of each phase of the Architectural Construction Documents. Landlord
shall immediately submit such information to Landlord's Contractor, who shall,
within twelve (12) business days, procure written, firm competitive bids as
required above for the costs of such work. Within five (5) business days after
receipt of such bids, Landlord will then submit to Tenant such bids of the cost
of each phase of Tenant's Improvements from the Landlord's Contractor. Tenant
shall accept or reject such bids within five (5) days by delivering to Landlord
its expenditure authorization for such work. In the event that Tenant rejects
or fails to respond to such bids within such five (5) day period, Tenant shall
have until the tenth (10th) day following such five (5) day period in which to
cause Tenant's Architect to resubmit plans, drawings, information and
instructions, if necessary, and to accept new bids from Landlord's Contractor.

                                    d)       Tenant shall have the right to
review and approve, which

                                      41
<PAGE>   42

shall not be unreasonably withheld or delayed, the final AIA form construction
contract for the Tenant Improvements prior to the execution by Landlord and
Landlord's Contractor.

                  10.      Construction.

                           10.1.    Construction by Tenant. Landlord, through
Landlord's Contractor and its or their subcontractors, shall secure all
required permits, and shall, with due diligence, cause the Tenant Improvements
to be constructed within the Premises and prepared for Tenant's occupancy, as
required by the Lease, this Agreement and the Construction Documents submitted
to and approved by Landlord and by Landlord's Architect. Landlord shall
furnish, install and perform or cause to be furnished, installed and performed
all Tenant Improvements in the Premises in compliance with all applicable laws,
ordinances, city codes and standard minimum insurance requirements as set forth
in said Construction Documents, all as revised in accordance with the
provisions hereof with said Tenant Improvements to be in the quantity and of
the quality specified. Upon Substantial Completion (as defined in the Lease) of
the Tenant Improvements, Landlord and Tenant shall inspect the Premises and
prepare a Punch List (as defined in the Lease) of any defects or uncompleted
items necessary to correct. The Premises shall not be deemed incomplete or not
ready for occupancy if only insubstantial details of construction, decoration
or mechanical adjustments remain to be done.

                           10.2.    Rules and Regulations. Landlord's
Contractor and all subcontractors shall comply with the Rules and Regulations
established by Landlord with respect to the construction of Tenant
Improvements. Such Rules and Regulations are attached to Tenant's Lease as
Exhibit "G" and may be modified from time to time by Landlord, in its
reasonable discretion, provided that Tenant's rights and obligations are not
adversely affected.

                           10.3.    Non-Compliance. In the event of any
material non-compliance by Landlord and Landlord's Contractor or their
subcontractors with any of the material provisions of this Agreement or any
other similar agreement relative to construction or occupation of the Premises,
Tenant, in addition to and not in lieu of any other right or remedy, may and
shall have the right, in its reasonable discretion and after the expiration of
applicable written notice and cure periods, to declare and treat such
non-compliance as a default under the Lease and exercise any right available
under the Lease, including any right of termination provided in the Lease. In
such event, Tenant may, but shall not be obligated to, perform Landlord's
construction obligations hereunder, at Landlord's expense. Notwithstanding the
foregoing, if Landlord's Contractor defaults or neglects to carry out the
construction of the Tenant Improvements in accordance with the Construction
Documents, in all material respects, and fails, within thirty (30) days after
receipt of written notice from Tenant, to commence and continue correction of
such default or neglect with diligence and promptness, Tenant reserves the
right after thirty (30) days to make good such deficiencies and charge such
costs to the Landlord; provided, however, if such default or neglect cannot
reasonably be cured within such 30 day period, Landlord's Contractor shall not
be deemed to be in default under the Construction Documents (and Tenant shall
not have the right to make good such deficiencies and charge such costs to
Landlord) if Landlord's Contractor (or Landlord or its designate) have
commenced such cure within such 30 day period.

                           10.4.    Extra Work. In the event Tenant desires to
make revisions to the Tenant Improvements after completion of the Construction
Documents, Tenant or Tenant's Architect must request the revisions in writing.
Minor revisions ($1,000.00 or less) may be made to maintain schedule with
documentation to follow. Tenant shall cause to be prepared and delivered to
Landlord, for Landlord's review and approval, which shall not be unreasonably
withheld or delayed, Revised Plans for the Extra Work. After reviewing the
Revised Plans, Landlord shall notify Tenant of Landlord's approval or
reasonable disapproval thereof and, in the event of its disapproval, Landlord
shall specify the reasons for such disapproval and cooperate with Tenant in
reaching mutually acceptable Revised Plans. Tenant may cause the Revised Plans
to be modified and resubmitted to Landlord for Landlord's further review and
approval within five (5) business days after Landlord notifies Tenant of its
disapproval.

                  11.      Payment for Work.

                           11.1.    Landlord's Dollar Contribution. Apart from
any other sums herein specified to be paid or credited by Landlord, Landlord
shall make a contribution of $21.00 per rentable square foot of the Premises
toward the cost of Tenant Improvements. The parties

                                      42
<PAGE>   43

acknowledge and agree that the Landlord, as a part of the costs of Tenant
Improvements, shall be allowed, for itself or for any third party it may
engage, a construction management fee or similar charge of one and one-half
percent (1.5%) of the cost of the Tenant Improvements up to a maximum of
Fifteen Thousand and No/100 Dollars ($15,000.00).

                           11.2.    Costs Above Landlord's Contribution. Tenant
shall pay any costs of construction of the Tenant Improvements which exceed
Landlord's Contribution. Upon Landlord's payment of the Landlord Contribution,
Tenant shall, on a periodic basis and not more than seven (7) business days
after Landlord's written request (together with copies of the documentation
delivered to Landlord by Landlord's Contractor), pay to Landlord (and Landlord
shall pay to Landlord's Contractor) such amounts as necessary to pay the
applicable costs of construction of the Tenant Improvements in excess of
Landlord's Contribution.

                           11.3.    Applications for Payment and Approval
Thereof. It is expected that payments to Landlord's Contractor and to the
subcontractors, suppliers and consultants will be made by Landlord on a monthly
basis as the work progresses, upon suitable application, invoice, or required
documentation and based on the value of work satisfactorily completed and
materials in place or suitably stored and segregated. Landlord shall permit
Tenant and Tenant's representative to be present at and participate in all
meetings (normally once monthly) at which such applications for payment are
submitted for review, discussion and approval, and to lodge all such
objections, if any, but failure to lodge such objections at such time shall not
prejudice Tenant or Landlord's right under any other provision of this
Agreement.

                           11.4.    Landlord's Payments. Periodically, but not
more than thirty (30) days after Landlord's Contractor has submitted to
Landlord, applications or invoices for Tenant Improvements performed to date
and appropriate partial lien waivers from Landlord's Contractor which includes
subcontractors' invoices for Tenant Improvements performed to date and
appropriate partial lien waivers from the subcontractors, Landlord shall pay
out of Landlord's Contribution, the cost of the Tenant Improvements performed
to date as shown on the invoice which has been approved by Landlord, less
retainage of ten percent (10%), less amounts previously paid out of Landlord's
Contribution. No later than forty-five (45) days after Landlord has received
the final invoice and including appropriate final lien waivers from Landlord's
Contractor (including final subcontractors' invoices and appropriate final lien
waivers from the subcontractors), Landlord shall pay out of Landlord's
Contribution the cost of the Tenant Improvements shown on the final invoice,
less amounts previously paid out of Landlord's Contribution.

                           11.5.    Liens. Except as otherwise provided herein
and subject to Landlord's right to contest any liens in good faith, Landlord
shall not permit any mechanics' lien, material lien, or any other lien to be
filed against the Premises, the Building or Tenant by reason of any Tenant
Improvements or by reason of any other work performed by Landlord, its
Contractor, subcontractors or suppliers. Landlord shall indemnify and hold
Tenant wholly harmless from and against all loss, cost, expense liability, and
damage resulting from any failure of Landlord to pay for the Tenant
Improvements, which failure is not caused by Tenant's failure to pay the costs
of Tenant Improvements in excess of Landlord's Contribution.

                  12.      Certain Other Documents. Landlord shall provide
Tenant with a construction schedule (and all amendments thereto) for the Tenant
Improvements.

                  13.      Access By Tenant Prior to Commencement of Lease.
Upon prior notice, Landlord shall permit Tenant and Tenant's agents to enter
the Premises after commencement of the Tenant Improvements in order that Tenant
or its agents may monitor construction of the Tenant Improvements, such
permission shall constitute a license only and not a lease and such license
shall be conditioned upon:

                           a)       Tenant furnishing Landlord with evidence of
such insurance as Landlord may reasonably require against liabilities which may
arise out of such entry,

                           b)       Tenant not interfering with Landlord,
Landlord's Contractor, and any subcontractors, mechanics and suppliers,

                           c)       Tenant's assuming responsibility for any
damages it causes, and

                                      43
<PAGE>   44

                           d)       Landlord shall have the right to withdraw
such license for any reasonable cause. Tenant assumes full responsibility for
any of its employees, agents or contractors admitted to the Premises pursuant
to this paragraph, and does hereby indemnify Landlord because of their
presence, or by or through said employees, agents or contracts.

                  14.      Miscellaneous.

                           14.1.    Headings. The headings are for convenience
only.

                           14.2.    Governing Law. This Agreement shall be
governed by the laws of the State of Tennessee without regard to conflicts of
laws principles.

                           14.3.    Time is of the Essence. Landlord and Tenant
agree time is of the essence in this Agreement

                           14.4.    Entire Agreement. This Agreement, the Lease
and its exhibits hereto attached set forth the entire agreement of Tenant and
Landlord regarding Tenant Improvements.

                           14.5.    Amendment. This Agreement may only be
amended in writing, duly executed by both Landlord and Tenant.

                           14.6.    Dates. Any date specified herein which may
fall on a Saturday, Sunday, or federal or state holiday shall be deemed to be
extended to the next day which is not a Saturday, Sunday, or federal or state
holiday.

                  15.      Designated Representatives:  Cooperation

                           15.1.    Landlord and Tenant shall each appoint one
(1) qualified and readily available representative with the authority to give
and receive notices, other materials and information relating to the Tenant
Improvements and approvals required under this Agreement. Initially, Landlord's
representative shall be as shown on Schedule 1, and Tenant's representative
shall be as shown on Schedule 2.

                           15.2.    Tenant and Landlord agree to make their
respective architects and engineers available to the other to answer questions
and provide clarifications and additional information as is reasonable for the
timely progress and completion of the Tenant Improvements.

"LANDLORD"                                      "TENANT"

TRIPLE T BRENTWOOD, LLC, a                      PRIVATE BUSINESS, INC., a
Delaware limited liability company              Tennessee corporation

By:     Travelers Property and Casualty         By:
        Company, a Connecticut                     ----------------------------
        corporation
                                                Its:
        By:                                         ---------------------------
           ---------------------------

        Its:
            --------------------------

                                      44
<PAGE>   45

                                   SCHEDULE 1
                                  TO EXHIBIT E

                 Landlord's Architect and pertinent information

                                  Hayden Architects, Inc.
                                  1808 West End Ave., Suite 928
                                  Nashville, TN  37203

                                  Greg Hayden
                                  Telephone:  (615) 380-3123

                      Landlord's Designated Representative
                           and pertinent information

                                      45
<PAGE>   46

                                   SCHEDULE 2
                                  TO EXHIBIT E

                               Tenant's Architect
                           and pertinent information

                      Tenant's Designated Representative
                           and pertinent information

                                      46
<PAGE>   47
                                  EXHIBIT "F"

                          FORM OF TENANT'S CERTIFICATE

__________________________
__________________________
__________________________

Attention:
           _______________

                  Re: Tenant's Certificate
                      --------------------
Gentlemen:

                  The undersigned, as Tenant under that certain Lease ("Lease")
dated ______________________, entered into with Triple T Brentwood, LLC, as
Landlord ("Landlord"), relating to certain premises designated as Suite
#_________ (the "Premises"), located at Overlook Park, Brentwood, Tennessee,
37027 hereby certifies that, as of the date hereof and subject to only those
exceptions, if any, noted below:

                  I. A true, correct and complete copy of the Lease is attached
as Exhibit "A" hereto. Except as identified below, in Item 3, there have been
no amendments, modifications, extensions, assignments or subleases of or
relating to the Lease. To Tenant's knowledge, the Lease is in full force and
effect. The term of the Lease commenced on __________, 19__, and will expire on
__________, ____.

                           1.       Possession of the Premises has been
delivered by Landlord to the undersigned, and the undersigned has accepted and
does occupy the Premises providing Tenant makes no representations as to the
presence or absence of latent or other defects.

                           2.       No more than one (1) month's rent has been
paid in advance; a security deposit in the amount set forth in the Lease has
been paid; no other amounts have been paid in advance to Landlord or deposited
therewith by the undersigned.

                           3.       To Tenant's knowledge, no defense or offset
to the enforcement of the Lease by Landlord exists. To Tenant's knowledge,
Landlord is not in default under the Lease and, to Tenant's knowledge, has not
committed any breach thereunder, nor has any event occurred known to Tenant
which, with the passage of time or the giving of notice, or both, would
constitute a default or breach thereunder by Landlord. Furthermore, to Tenant's
knowledge, Landlord has fully performed all of its obligations under any and
all agreements relating to the Lease or the Premises (including, but not
limited to, its obligations under any improvement agreement and any inducement
obligations).

                           4.       The undersigned does not have any right to
any concession (rental or otherwise) or similar compensation in connection with
the Premises other than as provided in the Lease except as follows:
____________________________________________________.

                           5.       Except as set forth in the Lease and
Addendum thereto, the undersigned does not have any (a) right to renew or
extend the term of the Lease, (b) option or preferential right to purchase all
or any part of the Premises or the building of which the Premises are a part,
or (c) right, title or interest with the respect to the Premises other than as
Tenant under the Lease.

                  The undersigned acknowledges that you are relying hereon and
warrants, represents and declares, for your benefit and that of your successors
and assigns that each of the foregoing certifications is materially true,
correct and complete, subject to only the following exceptions, if any:

_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________
_______________________________________________________________________________

                                      47
<PAGE>   48

______________________________

             Dated:  ________________________.

                                   PRIVATE BUSINESS, INC.

                                   By
                                      --------------------------------
                                    Its
                                        ------------------------------

                                   By
                                      --------------------------------
                                    Its
                                        ------------------------------

                                      48
<PAGE>   49

                                  EXHIBIT "G"

                             RULES AND REGULATIONS

                           1.       Sidewalks, halls, passageways, exits,
entrances, elevators, escalators and stairways shall not be permanently
obstructed by Tenant or used by Tenant for any purpose other than for ingress
to and egress. The halls, passageways, exits, entrances, elevators, escalators
and stairways are not for the use of the general public, and Landlord shall
retain the right to control and prevent access thereto by all persons whose
presence, in the judgment of Landlord, shall be prejudicial to the safety,
character, reputation or interests of the Building and its tenants and
occupants. Neither Tenant nor any of Tenant's employees shall go upon the roof
of the Building, without the prior consent of Landlord or its designate.

                           2.       No curtains, blinds, shades or screens
shall be attached or to hung in, or used in connection with any window of the
Premises (other than Landlord's standard window covering) without Landlord's
prior consent. All electric ceiling fixtures hung in offices or spaces along
the perimeter of the Building must be fluorescent, of a quality, type, design
and bulb color approved by Landlord. Neither the interior nor exterior of any
windows shall be coated or otherwise sunscreened without Landlord's prior
consent.

                           3.       Except as otherwise provided in that
certain Letter dated as of __________, 1999, between Landlord and Tenant, with
respect to Building signage (the "Side Letter"), no signs, pictures, placard,
advertisement, notice, lettering, direction or handbill shall be exhibited,
distributed, painted, installed, displayed, inscribed, placed or affixed by
Tenant on any part of the exterior of Premises or the interior of the Premises
which is visible from the exterior of the Premises, the Building or the Project
without the prior consent of Landlord. In the event of the violation of the
foregoing by Tenant, Landlord may remove same without any liability, and may
charge the expense incurred in such removal to Tenant. Except as otherwise
provided in the Side Letter, interior signs on doors shall be inscribed,
painted or affixed for Tenant by the Landlord, at Tenant's expense, and shall
be of a size, color and style acceptable to Landlord. Except as otherwise
provided in the Side Letter, nothing may be placed on the exterior of corridor
walls or corridor doors other than Landlord's building standard sign on the
corridor door, applied and installed by Landlord.

                           4.       The Building directory will be provided
exclusively for the display of the name and location of tenants of the Building
(including Tenant) and Landlord reserves the right to exclude any other names
therefrom.

                           5.       Tenant shall not drill into, or in any way
deface any part of the Premises. No boring, cutting or stringing of wires or
laying of linoleum or other similar floor coverings shall be permitted, except
with the prior consent of Landlord.

                           6.       No bicycles, vehicles, birds or animals of
any kind shall be brought into or kept in or about the Premises or the
Building, and no cooking shall be done or permitted by Tenant on the Premises,
except that the preparation of coffee, tea, hot chocolate and similar items for
Tenant and Tenant's employees shall be permitted; provided, however, that the
power required shall not exceed that amount which can be provided by a 30 amp
circuit. Tenant shall not cause or permit any unusual or objectionable odors to
be produced or to permeate the Premises or the Building.

                           7.       The Premises shall not be used for
manufacturing or for the storage of merchandise except as such storage may be
incidental to the use of the Premises for general office purposes. Tenant shall
not occupy or permit any portion of the Premises to be occupied as an office
for a public stenographer or typist or for the manufacture or sale of liquor,
narcotics, or tobacco in any form, or as a medical office, or as a barber or
manicure shop, or as an employment bureau or as a retail travel agency. Tenant
shall not sell or permit the sale of newspapers, magazines, periodicals,
theater tickets or any other goods or merchandise in or on the Premises. Tenant
shall not engage or pay any employees in the Premises except those actually
working for Tenant in the Premises nor shall Tenant advertise for laborers
giving an address at the Premises. The Premises shall not be used for lodging
or sleeping or for any immoral or illegal purposes.

                                      49
<PAGE>   50

                           8.       Except with respect to the proposed gym
facility for the benefit of Tenant and its employers. Tenant shall not make or
permit to be made, any unseemly noises which disturb other occupants of the
Building, whether by the use of any musical instrument, radio, television,
phonograph, screening room, loud, unusual or disruptive noise, or in any other
way. Tenant shall not use, keep or permit to be used any foul or noxious gas or
substance in, on or about the Premises.

                           9.       Neither Tenant nor any of Tenant's
employees shall, at any time, bring or keep within the Premises or the Building
any flammable, combustible or explosive fluid, chemical substance, or material.
Electric space heaters shall not be used at any time by Tenant.

                           10.      No new or additional locks or bolts of any
kind shall be placed upon any of the doors by Tenant, nor shall any changes be
made in existing locks or the mechanism thereof without Landlord's prior
consent. If Landlord consents to such a lock change, Tenant must furnish
Landlord with a key. Tenant must, upon the termination of its tenancy, give,
return, and restore to Landlord all keys of stores, offices, vaults, and toilet
rooms, either furnished to, or otherwise procured by Tenant, and in the event
at any time of any loss of keys so furnished, Tenant shall pay to Landlord the
cost of replacing the same or of changing the lock or locks opened by such lost
key if Landlord shall deem it necessary to make such changes. Nothing herein
shall prohibit Tenant from utilizing a security system so long as Landlord
receives prior written notice thereof and is provided a means of reasonable
access to the Premises.

                           11.      Furniture, freight, pictures, equipment,
safes, bulky matter or supplies of any description shall be moved in or out of
the Building only, after Landlord (or its designate) has been furnished with
prior notice and given its approval and only during such hours and in such
manner as may be prescribed by Landlord from time to time. The scheduling and
manner of Tenant's move-ins and move-outs shall be subject to the discretion
and approval of Landlord, and said move-ins and move-outs shall only take place
after 6:00 P.M. on weekdays, on weekends, or such other times as Landlord may
designate. In the event Tenant's movers damage the elevator or any other part
of the Building, Tenant shall immediately pay to Landlord the amount required
to repair said damage. The moving of safes or other fixtures or bulky or heavy
matter of any kind must be done under supervision of Landlord (or its
designate) and the person employed by Tenant for such work must be reasonably
acceptable to Landlord, but such persons shall not be deemed to be agents or
servants of Landlord (or its designate) and Tenant shall be responsible for all
acts of such persons. Landlord reserves the right to inspect all safes, freight
or other bulky or heavy articles to be brought into the Building and to exclude
from the Building all safes, freight or other bulky or heavy articles which
violate any of these Rules or Regulations or the Lease of which these Rules and
Regulations are a part. Landlord reserves the right to determine the location
and position of all safes, freight, furniture or bulky or heavy matter brought
onto the Premises, which must be placed upon supports approved by Landlord to
distribute the weight.

                           12.      No furniture shall be placed in front of
the Building or in any lobby or corridor, without Landlord's prior written
consent. Landlord shall have the right to remove all non-permitted furniture,
without notice to Tenant, and at the expense of Tenant.

                           13.      Tenant shall not purchase water, ice,
towel, janitorial or maintenance or other like services from any person or
persons not approved in writing by Landlord. Tenant shall not obtain or
purchase food or beverages in the Premises, the Building or the Project from
any vendor or supplier except at hours and under regulations fixed by Landlord.
The foregoing shall not apply to any "day maid" employed by Tenant or any
"break room" or cafeteria operated by Tenant or to vending machines located on
the Premises provided that such "break room" or cafeteria shall not contain any
gas or electric cooking ovens or stoves except for microwave ovens.

                           14.      Except as agreed else where in the Lease
(or side letter) Landlord shall have the right to prohibit any advertising by
Tenant which, in Landlord's opinion, tends to impair the reputation of the
Building or the Project or the desirability thereof as an office building
project and, upon written notice from Landlord, Tenant shall immediately
refrain from or discontinue such advertising.

                                      50
<PAGE>   51

                           15.      Landlord reserves the right to exclude from
the Building between the hours of 7:00 P.M. and 7:00 A.M., Monday through
Friday, and at all hours on Saturday, Sunday, state and federal holidays, all
persons who are not authorized by Tenant. Such authorization shall be in
accordance with procedures established by Landlord, in its sole and absolute
discretion. Tenant shall be responsible for all persons for whom it causes to
be present in the Building and shall be liable to Landlord for all acts of such
persons. In the case of invasion, riot, public excitement, act of God, or other
circumstance rendering such action advisable in Landlord's opinion, Landlord
reserves the right to prevent access of all persons (including Tenant) to the
Building during the continuance of the same by such actions as Landlord may
deem appropriate, including the closing and locking of doors.

                           16.      Any persons employed by Tenant to do so any
work in or about the Premises shall, while in the Building and outside of the
Premises, be subject to and under the control and discretion of Landlord's
designate (i.e., the superintendent or manager of the Building) but shall not
be deemed to be an agent or servant of said superintendent or the Landlord, and
Tenant shall be responsible for all acts of such persons.

                           17.      All doors opening onto public corridors
shall be kept closed, except when in use for ingress and egress. All doors
leading to equipment and utility rooms shall be kept closed.

                           18.      Canvassing, soliciting and peddling in the
Building are prohibited and each Tenant shall cooperate to prevent the same.

                           19.      All office equipment of any electrical
nature shall be placed by Tenant in the Premises in settings and locations
approved by Landlord, to absorb or prevent any vibration, noise and annoyance.

                           20.      No air conditioning unit or other similar
apparatus shall be installed or used by Tenant without Landlord's prior
consent.

                           21.      Tenant shall faithfully observe and comply
with the terms of any and all covenants, conditions and restrictions applicable
to it recorded against the Project.

                           22.      Restrooms and other water fixtures shall
not be used for any purpose other than that which the same are intended, and
any damage resulting to the same from misuse on the part of Tenant or Tenant's
employees shall be paid for by Tenant. Tenant shall be responsible for causing
all water faucets, water apparatus and utilities to be shut off before Tenant
or Tenant's employees leave the Premises each day and Tenant shall be liable
for any waste or damage sustained by other tenants or occupants of the Building
or Landlord as a result of Tenant's failure to perform said duty.

                           23.      In the event that Building or the Premises
is or later becomes equipped with an electronic access control device, Tenant
shall pay to Landlord the actual cost of each identification key or card issued
to Tenant as a deposit against the return of the identification key or card to
Landlord.

                                      51
<PAGE>   52

                                  EXHIBIT "H"

                        JANITORIAL SERVICE AND SUPPLIES

<TABLE>
<CAPTION>
<S>                                                                                                              <C>
ENTRANCE LOBBY - MARBLE FLOOR                                                                                    FREQUENCY OF
-----------------------------                                                                                    ------------
                                                                                                                 SERVICE
                                                                                                                 -------

Dust all horizontal surfaces                                                                                     5 x per week
Clean and polish all bright metal work                                                                           5 x per week
Clean both sides of all glass doors and side glass                                                               5 x per week
Empty all trash receptacles and replace liners as necessary                                                      5 x per week
Empty and damp wipe ashtrays (clean cigarette urns, smooth sand, and replace                                     5 x per week
as necessary)
Spot clean all walls, light fixtures, and doors                                                                  5 x per week
Spot clean revolving door glass (side glass and push bars)                                                       5 x per week
Dust high and low areas (pictures, clocks, partition tops, etc.)                                                 1 x per week
Dust mop hard surface floor with high speed buffer                                                               3 x per week
Damp mop entire area                                                                                             5 x per week
Clean lobby directory signs - removing all soil                                                                  5 x per week
Dust mop all hard surface floor with treated or electrostatic dust mop or buff                                   5 x per week
COMMON AREAS/HALLWAYS
---------------------
Fully vacuum all carpets from wall to wall                                                                       1 x per week
Vacuum all carpeted traffic lane areas                                                                           5 x per week
Spot clean all walls, light switches, and doors                                                                  5 x per week
Using approved spotter, spot clean carpeted areas                                                                1 x per week
Dust all low reach areas                                                                                         1 x per week
Dust all high reach areas                                                                                        1 x per week
EXECUTIVE OFFICES
-----------------
Fully vacuum all carpets from wall to wall                                                                       5 x per week
Empty all trash receptacles and replace liners as necessary                                                      5 x per week
Clean all glass partition                                                                                        1 x per week
Spot clean all glass partition                                                                                   5 x per week
Polish all wood furniture surfaces with approved polish                                                          1 x per week
Dust all furniture surfaces with approved polish                                                                 1 x per week
Dust wipe all telephones (including the ear and mouth piece)                                                     1 x per week
Dust all high and low areas (pictures, clocks, partition tops, etc.)                                             5 x per week
Dust all horizontal surfaces                                                                                     5 x per week
Spot clean all walls, light switches and doors                                                                   1 x per week
Using approved spotter, clean carpeted areas                                                                     1 x per week
OFFICE/CUBICLES
---------------
Fully vacuum all carpets from wall to wall                                                                       1 x per week
Vacuum all carpeted traffic lane areas                                                                           5 x per week
Empty all trash receptacles and replace liners as necessary                                                      5 x per week
Clean all glass partitions                                                                                       1 x per week
Spot clean all glass partition                                                                                   5 x per week
Polish all wood furniture surfaces with approved polish                                                          1 x per week
Dust all furniture, fixtures, equipment and accessories                                                          1 x per week
Dust wipe all telephones (including the ear and mouth piece)                                                     1 x per week
Dust high and low areas (pictures, clocks, partition tops, etc.)                                                 1 x per week
Dust all horizontal surfaces                                                                                     5 x per week
Spot clean all walls, light switches and doors                                                                   1 x per week
Using approved spotter, spot clean carpeted areas                                                                1 x per week
RESTROOMS - TILE
----------------
Hand dust, clean and wash all restroom partitions and walls                                                      1 x per week
Refill dispensers, empty trash, clean mirrors and wipe counters                                                  5 x per week
Clean and sanitize all restroom fixtures                                                                         5 x per week
Wipe chrome and spot wipe partitions                                                                             5 x per week
Sweep and damp mop floors using a germicidal cleaner                                                             5 x per week
Dust and clean all return air vents                                                                              1 x per month
</TABLE>

                                      52
<PAGE>   53
<TABLE>
<S>                                                                                                              <C>
Clean both sides of all doors                                                                                    1 x per week
Empty and clean sanitary disposal receptacle/replace plastic bag in receptacle                                   5 x per week
Machine scrub floors                                                                                             2 x per month
Strip and wax floors                                                                                             2 x per year
OFFICES - HARD SURFACES
-----------------------
Empty all trash receptacles and replace liners as necessary                                                      5 x per week
Clean all glass partition                                                                                        1 x per week
Spot clean all glass partition                                                                                   5 x per week
Polish all wood furniture surfaces with approved polish                                                          1 x per week
Dust all furniture, fixtures, equipment and accessories                                                          1 x per week
Dust wipe all telephones (including ear and mouth piece)                                                         1 x per week
Dust high and low areas (pictures, clocks, partition tops, etc.)                                                 1 x per week
Dust all horizontal surfaces                                                                                     5 x per week
Spot clean all walls, light switches and doors                                                                   1 x per week
Dust mop all hard surface floors with treated or electrostatic dust mop                                          5 x per week
Damp mop entire area                                                                                             1 x per week
Mop all stains and spills, especially coffee and drink spills                                                    5 x per week
Using a standard floor machine spray buff all hard surface areas                                                 1 x per week
BREAKROOMS
----------
Empty all trash receptacles and replace liners as necessary                                                      5 x per week
Damp wipe all cafeteria and lunch room tables                                                                    5 x per week
Spot clean all walls, light switches and doors                                                                   1 x per week
Dust high and low areas (pictures, clocks, partition tops, etc.)                                                 1 x per week
Using a damp cloth, dust all horizontal surfaces                                                                 5 x per week
Dust mop all hard surface floors with treated or electrostatic dust mop                                          5 x per week
Damp mop entire area                                                                                             5 x per week
Using a high speed floor machine, spray buff all hard surface areas                                              1 x per week
FILE/STORAGE ROOMS
------------------
Empty all trash receptacles and replace liners as necessary                                                      5 x per week
Dust high and low areas (pictures, clocks, partition tops, etc.)                                                 1 x per week
Dust all horizontal surfaces                                                                                     5 x per week
Spot clean all walls, light fixtures and doors                                                                   1 x per week
Dust mop all hard surface floors with treated or electrostatic dust mop                                          5 x per week
Damp mop entire area                                                                                             1 x per week
Mop all stains and spills, especially coffee and drink spills                                                    5 x per week
Using a high speed floor machine, spray buff all hard surface areas                                              1 x per week
CONCRETE EXIT HALLS - CONCRETE
------------------------------
Spot clean all walls, light switches and doors                                                                   1 x per week
Dust mop all hard surface floors with treated or electrostatic dust mop                                          1 x per week
Damp mop entire area                                                                                             1 x per week
STAIRS/ELEVATORS
----------------
Spot clean all walls, light switches and doors                                                                   1 x per week
Polish threshold plates in front of each elevator entry                                                          1 x per week
Dust rails and ledges                                                                                            1 x per week
Spot clean walls                                                                                                 1 x per week
Dust mop                                                                                                         1 x per week
Clean and polish elevator bright work                                                                            1 x per week
Wet mop stairs, dust railings, ledges and spot clean                                                             1 x per week
Using approved spotter, spot clean carpeted area                                                                 1 x per week
Completely clean and vacuum carpeted area                                                                        5 x per week
PERIODIC WORK
-------------
Clean all ceiling vents                                                                                          1 x per month
Dust all venetian blinds                                                                                         1 x per month
Clean all baseboards                                                                                             1 x per month
TRASH REMOVAL
-------------
Remove all collected trash to designated area                                                                    5 x per week
DAY PERSONNEL DUTIES
--------------------
Cigarette urns or trash receptacles in common areas are to be checked                                            5 x per week
morning and afternoon
Lavatories are to be checked and kept neat and clean at all times                                                5 x per week
</TABLE>

                                      53
<PAGE>   54
<TABLE>
<S>                                                                                                    <C>
All glass at building entrances and directories are to be cleaned and polished                         5 x per week
morning and afternoon
Wipe metal surface at building entrances and lobby directory with a treated                            5 x per week
dust cloth
DAY PERSONNEL DUTIES CONT.
--------------------------
Lobby directory glass and inside surfaces of lobby glass subject to handprints                         5 x per week
are to be cleaned and polished as required
Pick up trash and sweep sidewalk area and building grounds daily                                       5 x per week
Perform other duties as may be required by the Building Manager consistent                             As Required
with duties of position
</TABLE>

                                      54
<PAGE>   55
<TABLE>
<S>                                           <C>
Exhibit "A"............................................................Premises

Exhibit "B".............................................Designated Parking Area

Exhibit "C"...................................Form of Lease Commencement Letter

Exhibit "D" .........................................Base Building Improvements

Exhibit "E"......................................................Work Agreement

Exhibit "F"........................................Form of Tenant's Certificate

Exhibit "G"...............................................Rules and Regulations

Exhibit "H"...........................................Janitorial Specifications
</TABLE>

                                      55
<PAGE>   56
                                 TABLE OF CONTENTS                       PAGE(S)
                                 -----------------                       -------

                                                                          PAGE
                                                                          ----

1.         Premises; Common Areas; Parking; Basic Lease Information.........4

2.         Term and Possession..............................................6

3.         Base Rent; Security Deposit......................................7

4.         Additional Rent..................................................8

38.        Extension Option................................................30

39.        Right of Offer - First Floor and Second Floor...................30

40.        Right of First Refusal to Purchase..............................31

                                      56<PAGE>   1

                                                                   EXHIBIT 10.22

                    *CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE
           SECURITIES AND EXCHANGE COMMISSION.  ASTERISKS DENOTE SUCH OMISSIONS.

                   LABORATORY CORPORATION OF AMERICA HOLDINGS
                                   ("LABCORP")
                                MASTER AGREEMENT

This Agreement between TriPath Imaging. Inc. hereinafter referred to as TriPath
and Laboratory Corporation of America Holdings, ("LabCorp"), at LabCorp's option
"LabCorp" shall also refer to any or all of LabCorp's subsidiaries. This
Agreement sets forth the terms and conditions upon which TriPath will sell to
"LabCorp" and "LabCorp" will purchase various diagnostic products. The parties
agree as follows:

A.       In consideration of "LabCorp" purchasing from TriPath, the diagnostic
         products specified in the attached Product Addenda during the term of
         this Agreement, TriPath agrees to sell such diagnostic products to the
         "LabCorp" at the purchase prices specified. This is a Primary Source
         Agreement ,between the parties for products listed in the attached
         Addenda. This Agreement supersedes all prior contracts between the
         parties, and at LabCorp's option any prior contracts between TriPath
         and LabCorp's subsidiaries.

B.       "LabCorp", on a reasonable efforts basis, will notify TriPath in
         writing of all acquisitions, additions, and location changes. All
         previous agreements, between TriPath and the acquired "LabCorp" sites
         will, at "LabCorp"'s option, become null and void and this "LabCorp"
         Agreement will take effect. All acquisitions and additions shall be
         eligible for the current "LabCorp" pricing.

C.       The term of the Agreement shall commence on November 18, 1999 and
         remain in effect until *****************.

D.       TriPath shall ship to any "LabCorp" laboratory which orders diagnostic
         reagent who is authorized under this Agreement. Invoices should be
         mailed to the following address:

                                SEND INVOICES TO:

                              Laboratory Corporation of America Holdings
                              Accounts Payable Department
                              Caller 2280
                              Burlington, North Carolina 27216-2280

         Payment is ****************** for AutoCyte Prep Systems and component
         parts. Payment is ****************** for all disposables, (refer to
         Exhibit II "AutoCyte Prep System (TM)Disposables Addenda). "LabCorp" is
         taxable based on shipment destination and all applicable local/state
         taxes are the responsibility of "LabCorp". In those states where
         TriPath collects local/state sales taxes, TriPath will add these taxes
         to the invoices and remit to the appropriate taxing authority.

E.       Shipment shall be made*************************************************
         ******************. For the avoidance of doubt, TriPath will ship
         products *********** ********************************* to designated
         LabCorp processing Laboratories.

<PAGE>   2

         Express shipping charges incurred due to requested airfreight orders by
         LabCorp shall be borne by LabCorp.

F.       Neither party shall assign or transfer this Agreement without the
         consent of the other party, which consent shall not be unreasonably
         withheld or delayed.

G.       Notices and other communications permitted or required under this
         Agreement will be deemed to be properly given if in writing and either
         delivered by hand or mailed by First Class U.S. Mail, postage prepaid,
         addressed to the parties as follows:

         SELLER:             TriPath Imaging, Inc.
                             780 Plantation Drive
                             Burlington, NCCC 27215
                             Attention:  Ernie Knesel

         "LabCorp":          Laboratory Corporation of America Holdings
                             112 Orange Drive
                             Elon College, N. C. 27244
                             Attention:   Mrs. Gail Page
                              Carbon Copy to:
                             Laboratory Corporation of America Holdings
                             430 South Spring Street
                             Burlington, N.C. 27215
                             Attention:   Law Department

H.       This Agreement may not be amended or modified except by written
         agreement of both of the parties. Notwithstanding the above, if TriPath
         submits to LabCorp invoices at prices lower than those previously
         agreed to in this Agreement or Addenda, then LabCorp's sole
         responsibility shall be payment lesser of the invoice amount or the
         amount in the Agreement or Addenda.. In addition, in the event the
         invoice price is lower than the previously agreed price, the lower
         invoice price shall be the price for the remaining term of the
         applicable Agreement or Addenda. If minimum volumes or dollar
         expenditures specified in this agreement are not met, the parties will
         attempt to reach a new agreement as to prices. If no agreement is
         reached, TriPath may, as it's sole and exclusive remedy, terminate this
         agreement. In no event shall "LabCorp" be liable for monetary damages.

I.       TriPath will not be liable for any failure to perform under this
         Agreement due to strikes, fire, explosion, flood, riot, lock-out,
         injunction, interruption of transportation, unavoidable accidents,
         inability to obtain supplies at reasonable prices or diagnostic
         products set forth in this Agreement or any reason in this paragraph.
         Nothing shall prohibit "LabCorp" from obtaining the same or similar
         products from any source of "LabCorp"'s choosing during the period that
         TriPath is unable to perform under this Agreement.

J.       TriPath guarantees "LabCorp" the products supplied shall not be
         adulterated or misbranded within the meaning of the U.S. Food, Drug,
         and Cosmetic Act.

K.       TriPath and "LabCorp" will conduct quarterly business reviews to
         discuss technical performance of all products included in this
         Agreement. In the event that technical

<PAGE>   3

                    *CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE
           SECURITIES AND EXCHANGE COMMISSION.  ASTERISKS DENOTE SUCH OMISSIONS.

         problems are identified or a TriPath product is unavailable, "LabCorp"
         will notify TriPath of the problem in writing, TriPath will, within the
         course often (10) working days, identify an action plan to correct the
         problem and deliver this, in writing, to "LabCorp". If, after an
         additional twenty (20) working days, progress is not demonstrated in
         resolving the problem or product performance does not meet package
         insert claims, then "LabCorp" may discontinue use of that product
         without affecting the terms and conditions of the Agreement.

L.       This Agreement may be terminated by either party with or without cause
         at any time with ninety (90) days written notice unless there are
         quality or shipment problems. If quality or shipment problems occur,
         then Paragraph K (K on page 2) applies. Quality or shipment problems
         are defined as inconsistent shipments, inadequate product availability,
         products that do not meet package insert claims or performance
         specifications as published in the manufacturers' publications.

M.       If an individual product becomes standardized across all Laboratory
         Corporation of America Holdings laboratories, both parties will
         negotiate a price change for that product and amend or add a product
         addendum.

N.       Items defined as products listed on Addenda or added on Addenda (added
         at a later date) will have guaranteed pricing through the term of the
         agreement.

O.       If any terms of this Agreement are not met by "LabCorp" and the parties
         cannot agree on a resolution, TriPath may, as its sole and exclusive
         remedy, terminate this Agreement.

P.       TriPath warrants that during their applicable shelf life, the test will
         conform with the Specifications set forth in the package insert.
         FURTHERMORE, TRIPATH HEREBY REPRESENTS AND WARRANTS THAT***************
         ***********************************************************************
         *******************. TRIPATH HEREBY REPRESENTS AND WARRANTS THAT THE
         ***********************************************************************
         ***********************************************************************
         ***********************************************************************

Q.       TriPath shall give "LabCorp" a 120 day written notification of any
         product changes.

R.       TriPath agrees to make the following Year 2000 Compliance Warranties
         with respect to any products covered by this Agreement (the
         "Products").

         1.       DEFINITIONS.  As used in this Section:

         a.       "Date Data" shall mean any data or input which includes an
                  indication of or reference to date.

         b.       "Four Digit Year Format" shall mean a format that allows entry
                  or processing of a four digit year in which the first two
                  digits will designate the century and the second two digits
                  shall designate the year within the century.

<PAGE>   4

         c.       "Leap Year" shall mean the year during which an extra day is
                  added in February. Leap Year occurs in all years divisible by
                  400 or evenly divisible by 4 and not evenly divisible by 100.

         d.       "Year 2000 Capabilities" shall mean that the Products:

                          (i)     will manage, store and manipulate Date Data,
                                  including single-century and multi-century
                                  formats, and will not cause an abnormal ending
                                  within applications or format incorrect values
                                  or invalid results involving such dates; and

                          (ii)    ensures that all Date Data fields, all
                                  date-related user interface functionalities
                                  and all date-related data interface
                                  functionalities include the indication of
                                  century.

         e.       "Year 2000 Compliant" or "Year 2000 Compliance" shall mean
                  that the Date Data outside of the range 1990-1999 will be
                  correctly processed in any level of computer hardware or
                  software including, but not limited to, microcode, firmware,
                  application programs, files and databases.

         2.       YEAR 2000 COMPLIANCE WARRANTIES.

         a.       TriPath represents and warrants that the Products are designed
                  to be used prior to, during, and after the calendar year 2000
                  A.D., and that the Products will operate during any such time
                  period without error relating to Date Data, including, but not
                  limited to, any error that relates to, or is the product of,
                  Date Data which represents or references different centuries
                  or more than one century.

         b.       Without limiting the generality of the foregoing, TriPath
                  further represents and warrants:

                          (1)     that the Products will not abnormally end or
                                  provide invalid or incorrect results as a
                                  result of Date Data, including, but not
                                  limited to, Date Data which represents or
                                  references different centuries or more than
                                  one century;

                          (2)     that the Products have been designed to ensure
                                  Year 2000 Compliance, including, but not
                                  limited to, Date Data century recognition,
                                  calculations which accommodate same-century
                                  and multi-century formulas and date values,
                                  and Date Data interface values that reflect
                                  the century;

                          (3)     that the Products are and will continue to be
                                  Year 2000 Compliant; that all date processing
                                  by the Products will include Four Digit Year
                                  Format and recognize and correctly process
                                  dates for Leap Year; and that all sorting data
                                  that includes a year category shall be done
                                  based on the Four Digit Year Format code; and

                          (4)     that the Products include "Year 2000
                                  Capability".

<PAGE>   5

                    *CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE
           SECURITIES AND EXCHANGE COMMISSION.  ASTERISKS DENOTE SUCH OMISSIONS.

         TriPath agrees to pay liquidated damages in the amount of $_____ per
         day for each day the Products fail to maintain and uphold the Year 2000
         Compliance Warranties described in this Section.

S.       TriPath agrees to defend, indemnify, and hold "LabCorp" and
         subsidiaries, directors, officers, employees, an agents wholly harmless
         from and against third-party claims, losses, DAMAGES, lawsuits,
         settlements, demands, causes, judgments, expenses, and cost (including
         reasonable attorney fees) arising OR ALLEGED under or in connection
         with this Agreement or LABCORP'S USE OF PRODUCTS UNDER THIS AGREEMENT
         in the event that such cost and liabilities are caused by a) TriPath 1
         reach of any of its warranties in this Agreement, b) the failure of
         products to function properly for "LabCorp's intended use, c) any
         negligence or willful misconduct of TriPath, or d) any other liability
         resulting from "LabCorp's use of the PRODUCTS. However, such rights to
         indemnify shall not apply to the extent that such claim, loss, lawsuit
         or settlement results from "LabCorp's sole negligence or willful acts
         including the sole negligence of LabCorp employees.********************
         ***********************************************************************
         ***********************************************************************
         ***********************************************************************
         ***********************************************************************
         **********************************

T.       ***********************************************************************
         ***********************************************************************
         ***********************************************************************
         ***********************************************************************
         *****************************************

U.       TriPath acknowledges that LabCorp has a proprietary interest in its
         legal and business name and REPUTATION. Therefore, TriPath agrees that
         it shall not use LabCorp's name nor shall TriPath mention or describe
         this Agreement or its relationship with LabCorp in any press release,
         advertising, marketing, and promotional materials or other publications
         or materials without first obtaining the prior written approval of
         LabCorp's Senior Vice-President of Automation and Diagnostics. A
         violation of this paragraph shall be considered a material breach of
         this Agreement by LabCorp, and LabCorp shall be entitled to pursue any
         and all legal or equitable remedies, including an injunction, as a
         result of such breach.

  IN THE EVENT OF ANY INCONSISTENCIES BETWEEN THIS AGREEMENT AND THE APPENDED
            TERMS & CONDITIONS, THIS MASTER AGREEMENT SHALL CONTROL.

<PAGE>   6

LABORATORY CORPORATION OF                TRIPATH IMAGING, INC.
AMERICA HOLDINGS

By:______________________________        By:____________________________________

Title:___________________________        Title:_________________________________

Date:____________________________        Date:__________________________________

<PAGE>   7

                    *CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE
           SECURITIES AND EXCHANGE COMMISSION.  ASTERISKS DENOTE SUCH OMISSIONS.

  PRODUCT ADDENDUM A TO LABORATORY CORPORATION OF AMERICA HOLDINGS ("LABCORP")

             MASTER AGREEMENT WITH TRIPATH IMAGING, INC. ("TRIPATH")

           PRODUCTS COVERED IN THIS ADDENDUM: AUTOCYTE PREP SYSTEM(TM)
                            AND RELATED DISPOSABLES

                       DATE OF ADDENDUM: NOVEMBER 18, 1999

         As part of the above-referenced agreement, TriPath will provide LabCorp
and its subsidiaries with the AutoCyte PREP SystemTM ("PREP") and related
disposables for gynecological ("GYN") cytology. The terms and conditions of sale
are as stated in the Master Agreement, along with the following terms and
conditions.

1.       PRODUCTS COVERED BY THIS AGREEMENT, AND RELATED PRICING:

         ***********************************************************************
         *                                                                     *
         *                                                                     *
         *                                                                     *
         *                                                                     *
         ***********************************************************************

     (1)      As more fully described in Exhibit I
     (2)      As more fully described in Exhibit II

2.        UPDATING AND RESTORATION: TriPath has agreed to update and restore to
          the current GYN approved specifications all AutoCyte PREP Systems
          owned by LabCorp at TriPath expense. This includes the replacement of
          all tubing, valves, slide platters and installation of the new Gyn
          software. This will be accomplished by November 15, 1999 on the ***
          instruments purchased by LabCorp prior to 1996 for use with non-gyn
          preparations.

3.       ***********************************************************************
         ***********************************************************************
         ***********************************************************************
         ***********************************************************************
         ***********************************************************************
         ***********************************************************************
         ***********************************************************************

<PAGE>   8

                    *CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE
           SECURITIES AND EXCHANGE COMMISSION.  ASTERISKS DENOTE SUCH OMISSIONS.

         ***********************************************************************
         *******************************************************

4.       ADDITIONAL SUPPORT PROVIDED BY TRIPATH: TriPath agrees to support
         LabCorp in the following ways:

         a.       Technical training at TriPath for a pathologist,
                  cytotechnologist and prep technician from each site. TriPath
                  will pay for all meals, lodging and training at its site.
                  LabCorp will pay for all transportation.

         b.       On-site training of additional Cytotechnologists and technical
                  support as REASONABLY REQUIRED BY LABCORP to initiate the
                  technology at each LabCorp site at TriPath expense.

         c.       Sales and promotional support including sales training and
                  joint calling of key accounts for each LabCorp region. TRIPATH
                  SHALL ADD A MINIMUM OF TEN ADDITIONAL TECHNICAL SALES
                  SPECIALISTS TO ITS STAFF WITHIN 90 DAYS OF SIGNING THIS
                  AGREEMENT FOR PURPOSES OF MARKETING TRIPATH'S SERVICES TO
                  THIRD PARTIES.

         d.       TriPath will conduct regional sales training as requested by
                  regional LabCorp management and will work to support LabCorp
                  sales representatives in the field as mutually agreed upon by
                  the parties. This training SHALL PROVIDE THE LABCORP SALES
                  REPRESENTATIVES WITH THE NECESSARY KNOWLEDGE OF THE FEATURES
                  AND BENEFITS OF THE TRIPATH PRODUCTS.

         e.       THROUGHOUT THE TERM OF THIS AGREEMENT, TRIPATH SHALL RETAIN A
                  COMPANY WITH SIGNIFICANT REIMBURSEMENT EXPERIENCE TO ASSIST
                  THE PARTIES WITH NON-PAYMENT OR REIMBURSEMENT ISSUES.

         5.       PAYMENT TERMS:

         a.       LabCorp will determine on a lab-by-lab basis the amount of lab
                  supplies that it will purchase by issuance of a purchase order
                  and which TriPath will then ship and invoice according to the
                  Terms and Conditions of the purchase order. TriPath and
                  LabCorp agree to make the shipment amounts based upon an
                  estimated usage, but never less than a 480 test kit. The
                  shipment quantities will be increased once experience
                  demonstrates levels of usage.

         b.       **************************************************************
                  **************************************************************
                  **************************************************************
                  **************************************************************
                  **************************************************************
                  **************************************************************
                  **************************************************************
                  **************************************************************
                  ******************************

<PAGE>   9

         6.       WARRANTY:

                  a. EQUIPMENT: TriPath warrants that the AutoCyte PREP System
                  and all component parts will perform in accordance with
                  product specifications and FDA-approved product labeling for a
                  period of twelve (12) months after the purchase date, provided
                  that LabCorp uses no reagents, consumables and/or accessories
                  on the Equipment other than those from TriPath or its
                  authorized agents. During such twelve (12) month period, at no
                  cost to LabCorp, TriPath or TriPath appointed personnel shall
                  service, alter or replace the Equipment and/or accessories
                  which are necessary to keep the equipment in good running
                  order, excluding consumable items which require replacement
                  with normal use. No other persons are authorized to perform
                  service on the EQUIPMENT. Excepting repair expense arising
                  from normal use, LabCorp shall reimburse TriPath or pay for
                  the reasonable expenses of repairing any damage or alteration
                  to the Equipment caused by LabCorp, it's employees, agents,
                  contractors or any unauthorized personnel. TriPath will
                  provide at no charge to LabCorp one scheduled preventive
                  maintenance visit per system after six (6) months of
                  operation.

                  b. REAGENTS: TriPath warrants that for a period of six (6)
                  months after the date of shipment from TriPath, all
                  disposables sold by TriPath to LabCorp shall, under normal
                  use, materially conform with TriPath's published
                  specifications and FDA-approved product labeling as of the
                  date of shipment of the Reagent and shall be free from
                  manufacturing and material defects.

                  c. WARRANTY CONDITIONS PRECEDENT: TriPath shall bear no
                  responsibility for correcting, curing, or otherwise remedying
                  any nonconformity or defect in the AutoCyte PREP System (the
                  "Product") (or any other breach with respect to the condition
                  or operation of the Products) if (1) with respect to Equipment
                  and Software, such Product is not installed and maintained by
                  TriPath or its authorized agents; (2) the Product is not
                  OPERATED IN A MANNER CONSISTENT WITH PACKAGE INSERT AND
                  PRODUCT SPECIFICATIONS; (3) the Product incorporates spare or
                  replacement parts or utilizes reagents other than those
                  purchased from or recommended by TriPath.

7.        SOFTWARE LICENSE: TriPath provides LabCorp a nontransferable,
          nonexclusive, royalty free license to the software KNOWN AS THE PREP
          GYN OPERATING SOFTWARE. LabCorp may not copy, modify, decode, reverse
          engineer, decompile or disassemble the Software for any purpose.

                  a.       Title and Ownership. TRIPATH REPRESENTS AND WARRANTS
                           THAT IT HAS THE UNENCUMBERED RIGHT TO LICENSE THE
                           SOFTWARE AND SUCH LICENSE DOES NOT VIOLATE THE RIGHTS
                           OF ANY THIRD PARTY. All title and ownership of
                           proprietary and intellectual property rights in the
                           Software and related documentation are and shall at
                           all times remain the sole
                           and exclusive property of TriPath.

                  b.       License Term. The license granted under this
                           Agreement shall commence upon delivery of the
                           Software to LabCorp by TriPath and shall continue
                           indefinitely unless terminated sooner. LabCorp may

<PAGE>   10

                           terminate this license at any time by written notice
                           to TriPath. TriPath may terminate this license at any
                           time upon the delivery of written notice to LabCorp
                           if LabCorp falls to fulfill any of its material
                           obligations hereunder and does not cure such failure
                           within thirty (30) days following written notice
                           thereof.

Laboratory Corporation of America Holdings     TriPath Imaging, Inc.

By:_______________________________________     _________________________________

<PAGE>   11

                                    EXHIBIT I

AUTOCYTE PREP SYSTEM(TM) COMPONENTS AND SPECIFICATIONS

The AutoCyte PREP System is a batch oriented sample-processing device capable of
producing up to 48 stained thin layer slides in approximately one hour. The
AutoCyte PREP System includes the PREP sample processor instrument and
accessories, a personal computer with PREP GYN operating software pre- installed
and a Hettich programmable centrifuge capable of performing all functions
necessary to prepare cytological samples for the AutoCyte PREP System

         1.       PREP SAMPLE PROCESSOR INSTRUMENT
                            -   Quad assembly with tips
                            -   Base Plate
                            -   (4) Interlocking Slide Racks
                            -   Disposable tip rack, holder and loading tool
                            -   Waste trough
                            -   Specimen Accessioning Rack
                            -   (2) Vacuum pumps and tube vac head
                            -   Slide rack for 25 slides
                            -   Slide coat tank with lid
                            -   6 position bottle holder
                            -   (2) 500m1 cleaning bottles
                            -   0-5ml Dispenser
                      Voltage:  120v or 220v / 50-60 Hz
                      Power: 800 VA
                      Weight:  168 lbs.
                      Dimensions: Height- 30"      Width- 38"       Depth- 25"
                      Throughput: Up to 48 Stained thin layer slides per run

         2.       SYSTEM CONTROL MODULE
                            - IBM compatible PC (80386 or greater)
                            - 14 inch color monitor
                            - Qwerty keyboard
                            - IBM compatible mouse
                      Voltage: 120v or 220v / 50-60 Hz
                      Power: 50-60 W
                      Weight: Subject to change based on availability

         3.       HETTICH PROGRAMMABLE CENTRIFUGE
                            - (4) Red plastic buckets
                            - (4) 12 place tube holder
                            - (4) Centrifuge bucket covers
                      Voltage:  120 v or 220v / 50C60 Hz
                      Power:  400 W
                      Weight:  110 lbs.
                      Dimensions: Height- 17"  Width- 24"   Depth- 21"

<PAGE>   12

                    *CONFIDENTIAL MATERIAL OMITTED AND FILED SEPARATELY WITH THE
           SECURITIES AND EXCHANGE COMMISSION.  ASTERISKS DENOTE SUCH OMISSIONS.

                                   EXHIBIT II

                      AUTOCYTE PREP SYSTEM(TM) DISPOSABlES

EXHIBIT B

   ADDENDUM TO EXHIBIT D FROM ORIGINAL CONSIGNMENT OF EQUIPMENT AND PURCHASE
                        OF RELATED DISPOSABLES AGREEMENT

  PART #                        DESCRIPTION                              PRICE
  ------                        -----------                              -----

GYN-0480DS               GYN 480 TEST KIT LABPACK                      $********
               THIS KIT CONTAINS DISPOSABLES NECESSARY TO PRODUCE
               480 GYN THIN-LAYER SLIDE PREPARATION, AS FOLLOWS:
               Slide Coat Reagent (275ml)
               Density Reagent (4 x 480ml)
               Hematoxylin (2 x 480ml)
               Orange G Stain (2 x 480ml)
               Modified EA Stain (2 x 480ml)
               Settling Chambers (480)
               Cyringes (500)
               Slides (500)
               Centrifuge Tubes (500)
               Disposable Transfer Tips (480)
               Aspirator Tips (200)

ADDITIONAL ITEMS THAT CAN BE PURCHASED SEPARATELY:

GYN-0500-C     500 GYN BRUSH & VIAL KIT                                $********
05CR000029     ALCOHOL RINSE SOLUTION (3600ML)                         $********
05CR000031     ALCOHOL RINSE SOLUTION (480ML)                          $********
90CR000006     SLIDE COAT REAGENT (275ML)                              $********
90CR000037     GYN PRESERVATIVE FLUID (3600ML)                         $********
90CR000001     GYN PRESERVATIVE FLUID (480ML)                          $********
80CR000022     BUFFERED WATER                                          $********

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