Exhibit No. 10.4
                Lease Agreement with 580 Brighton Road Associates
                        for space in Clifton, New Jersey
<PAGE>

This Lease Agreement, made the ___ day of March 6th 1998,

Between 580 BRIGHTON ROAD ASSOCIATES

Landlord

located at 50 Mt. Prospect Avenue

in the City of Clifton in the County of
Passaic and State of New Jersey, herein designated as the Landlord,

And ECSI INTERNATIONAL

Tenant

located at 23 Just Road
in the Borough of Fairfield in the County of
Essex and State of         , herein designated as the Tenant;

Premises

      Witnesseth that, the Landlord does hereby lease to the Tenant and the
Tenant does hereby rent from the Landlord, the following described premises:
Approximately 9,600 square feet of Office and Warehouse space as set forth on
the attached Site Plan. Said Office and Warehouse space is located at 790
Bloomfield Avenue, Clifton, New Jersey, a/k/a: Block: #5607, Lot: #15 on the Tax
Map of the City of Clifton, New Jersey.

Term

for a term of TEN (10) YEARS commencing on May 1, 1998, and ending on April 30,
2008, to be used and occupied only and for no other purpose than Office,
Assembly, Warehouse and Distribution of Electronic Components.

Use

Upon the following Conditions and Covenants:
      1st: The Tenant covenants and agrees to pay to the Landlord, as rent for
and during the term hereof, the sum of ($473,025.00) FOUR HUNDRED SEVENTY THREE
THOUSAND AND TWENTY FIVE DOLLARS. in the following manner:

Payment of Rent

            SEE ATTACHED PAYMENT OF RENT SCHEDULE "A"

Repairs and Care

      2nd: The Tenant has examined the premises and has entered into this lease
without any representation on the part of the Landlord as to the condition
thereof. The Tenant shall take good care of the premises and shall at the
Tenant's own cost and expense, make all repairs, including painting and
decorating, and shall maintain the premises in good condition and state of
repair, and at the end or other expiration of the term hereof, shall deliver up
the rented premises in good order and condition, wear and tear from a reasonable
use thereof, and damage by the elements not resulting from the neglect or fault
of the Tenant, excepted. The Tenant shall neither encumber nor obstruct the
sidewalks, driveways, yards, entrances, hallways and stairs, but shall keep and
maintain the same in a clean condition, free from debris, trash, refuse, snow
and ice.

Glass, etc. Damage Repairs

      3rd: In case of the destruction of or any damage to the glass in the
leased premises, or the destruction of or damage of any kind whatsoever to the
said premises, caused by the carelessness, negligence or improper conduct on the
part of the Tenant or the Tenant's agents, employees, guests, licensees,
invitees, subtenants, assignees or successors, the Tenant shall repair the said
damage or replace or restore any destroyed parts of the premises, as speedily as
possible, at the Tenant's own cost and expense.

Alterations

Improvements

      4th: No alterations, additions or improvements shall be made, and no
climate regulating, air conditioning, cooling, heating or sprinkler systems,
television or radio antennas, heavy equipment, apparatus and fixtures, shall be
installed in or attached to the leased premises, without the written consent of
the Landlord. Unless otherwise provided herein, all such alterations, additions
or improvements and systems, when made, installed in or attached to the said
premises, shall belong to and become the property of the Landlord and shall be
surrendered with the premises and as part thereof upon the expiration or sooner
termination of this lease, without hindrance, molestation or injury.

Signs

      5th: The Tenant shall not place nor allow to be placed any signs of any
kind whatsoever, upon, in or about the said premises or any part thereof, except
of a design and structure and in or at such places as may be indicated and
consented to by the Landlord in writing. In case the Landlord or the Landlord's
agents, employees or representatives shall deem it necessary to remove any such
signs in order to paint or make any repairs, alterations or improvements in or
upon said premises or any part thereof, they may be so removed, but shall be
replaced at the Landlord's expense when the said repairs, alterations or
improvements shall have been completed. Any signs permitted by the Landlord
shall at all times conform with all municipal ordinances or other laws and
regulations applicable thereto.

Utilities

      6th: The Tenant shall pay when due all the rents or charges for water or
other utilities used by the Tenant, which are or may be assessed or imposed upon
the leased premises or which are or may be charged to the Landlord by the
suppliers thereof during the term hereof, and if not paid, such rents or charges
shall be added to and become payable as additional rent with the installment of
rent next due or within 30 days of with respect to the Leased Premises demand
therefor, whichever occurs sooner.

Compliance with Laws etc.

      7th: The Tenant shall promptly comply with all laws, ordinances, rules,
regulations, requirements and directives of the Federal, State and Municipal
Governments or Public Authorities and of all their departments, bureaus and
subdivisions, applicable to and affecting the said premises, their use and
occupancy, for the correction, prevention and abatement of nuisances, violations
or other grievances in, upon or connected with the said premises, during the
term hereof; and shall promptly comply with all orders, regulations,
requirements and directives of the Board of Fire Underwriters or similar
authority and of any insurance companies which have issued or are about to issue
policies of insurance covering the said premises and its contents, for the
prevention of fire or other casualty, damage or injury, at the Tenant's own cost
and expense.

Liability Insurance

Indemnification

      8th: The Tenant, at Tenant's own cost and expense, shall obtain or provide
and keep in full force for the benefit of the Landlord, during the term hereof,
general public liability insurance, insuring the Landlord against any and all
liability or claims of liability arising out of, occasioned by or resulting from
any accident or otherwise in or about the leased premises, for injuries to any
person or persons, for limits of not less than $1,000,000 for injuries to one
person and $1,000,000 for injuries to more than one person, in any one accident
or occurrence, and for loss or damage to the property of any person or persons,
for not less than $500,000. The policy or policies of insurance shall be of a
company or companies authorized to do business in this State and shall be
delivered to the Landlord, together with evidence of the payment of the premiums
therefor, not less than fifteen days prior to the commencement of the term
hereof or of the date when the Tenant shall enter into possession, whichever
occurs sooner. At least fifteen days prior to the expiration or termination date
of any policy, the Tenant shall deliver a renewal or replacement policy with
proof of the payment of the premium therefor. The Tenant also agrees to and
shall save, hold and keep harmless and indemnify the Landlord from and for any
and all payments, expenses, costs, attorney fees and from and for any and all
claims and liability for losses or damage to property or injuries to persons
occasioned wholly or in part by or resulting from any acts or omissions by the
Tenant or the Tenant's agents, employees, guests, licensees, invitees,
subtenants, assignees or successors, or for any cause or reason whatsoever
arising out of or by reason of the occupancy by the Tenant and the conduct of
the Tenant's business.
<PAGE>

                               RENT SCHEDULE "A"
                               -----------------

The Rent is payable in advance on the first (1st) day of each month as follows:

5/1/1998 to 4/30/1999 - $3,600.00 Per Month ($43,200) Per Annum

5/1/1999 to 4/30/2000 - $3,672.00 Per Month ($44,064) Per Annum *

5/1/2000 to 4/30/2001 - $3,745.41 Per Month ($44,945) Per Annum *

5/1/2001 to 4/30/2002 - $3,820.33 Per Month ($45,844) Per Annum *

5/1/2002 to 4/30/2003 - $3,896.75 Per Month ($46,761) Per Annum *

5/1/2003 to 4/30/2004 - $3,974.66 Per Month ($47,696) Per Annum *

5/1/2004 to 4/30/2005 - $4,054.16 Per Month ($48,650) Per Annum *

5/1/2005 to 4/30/2006 - $4,135.12 Per Month ($49,623) Per Annum *

5/1/2006 to 4/30/2007 - $4,217.91 Per Month ($50,615) Per Annum *

5/1/2007 to 4/30/2008 - $4,302.25 Per Month ($51,627) Per Annum *

* RENT REFLECTS A 2% ANNUAL INCREASE
<PAGE>

Assignment

      9th: The Tenant shall not, without the written consent of the Landlord,
assign, mortgage or hypothecate this lease, nor sublet or sublease the premises
or any part thereof.

Restriction of Use

      10th: The Tenant shall not occupy or use the leased premises or any part
thereof, nor permit or suffer the same to be occupied or used for any purposes
other than as herein limited, nor for any purpose deemed unlawful, disreputable,
or extra hazardous, on account of fire or other casualty.

Mortgage Priority

      11th: This lease shall not be a lien against the said premises in respect
to any mortgages that may hereafter be placed upon said premises. The recording
of such mortgage or mortgages shall have preference and precedence and be
superior and prior in lien to this lease, irrespective of the date of recording
and the Tenant agrees to execute any instruments, without cost, which may be
deemed necessary or desirable, to further effect the subordination of this lease
to any such mortgage or mortgages. A refusal by the Tenant to execute such
instruments shall entitle the Landlord to the option of cancelling this lease,
and the term hereof is hereby expressly limited accordingly.

Condemnation

Eminent Domain

      12th: If the land and premises leased herein, or of which the leased
premises are a part, or any portion thereof, shall be taken under eminent domain
or condemnation proceedings, or if suit or other action shall be instituted for
the taking or condemnation thereof, or if in lieu of any formal condemnation
proceedings or actions, the Landlord shall grant an option to purchase and or
shall sell and convey the said premises or any portion thereof, to the
governmental or other public authority, agency, body or public utility, seeking
to take said land and premises or any portion thereof, then this lease, at the
option of the Landlord, shall terminate, and the term hereof shall end as of
such date as the Landlord shall fix by notice in writing; and the Tenant shall
have no claim or right to claim or be entitled to any portion of any amount
which may be awarded as damages or paid as the result of such condemnation
proceedings or paid as the purchase price for such option, sale or conveyance in
lieu of formal condemnation proceedings; and all rights of the Tenant to
damages, if any, are hereby assigned to the Landlord. The Tenant agrees to
execute and deliver any instruments, at the expense of the Landlord, as may be
deemed necessary or required to expedite any condemnation proceedings or to
effectuate a proper transfer of title to such governmental or other public
authority, agency, body or public utility seeking to take or acquire the said
lands and premises or any portion thereof. The Tenant covenants and agrees to
vacate the said premises, remove all the Tenant's personal property therefrom
and deliver up peaceable possession thereof to the Landlord or to such other
party designated by the Landlord in the aforementioned notice. Failure by the
Tenant to comply with any provisions in this clause shall subject the Tenant to
such costs, expenses, damages and losses as the Landlord may incur by reason of
the Tenant's breach thereof.

Fire and other Casualty

      13th: In case of fire or other casualty, the Tenant shall give immediate
notice to the Landlord. If the premises shall be partially damaged by fire, the
elements or other casualty, the Landlord shall repair the same as speedily as
practicable, but the Tenant's obligation to pay the rent hereunder shall not
cease. If, in the opinion of the Landlord, the premises be so extensively and
substantially damaged as to render them untenantable, then the rent shall cease
until such time as the premises shall be made tenantable by the Landlord.
However, if in the opinion of the Landlord, the premises be totally destroyed or
so extensively and substantially damaged as to require practically a rebuilding
thereof, then the rent shall be paid up to the time of such destruction and then
and from thenceforth this lease shall come to an end. In no event however, shall
the provisions of this clause become effective or be applicable, if the fire or
other casualty and damage shall be the result of the carelessness, negligence or
improper conduct of the Tenant or the Tenant's agents, employees, guests,
licensees, invitees, subtenants, assignees or successors. In such case, the
Tenant's liability for the payment of the rent and the performance of all the
covenants, conditions and terms hereof on the Tenant's part to be performed
shall continue and the Tenant shall be liable to the Landlord for the damage and
loss suffered by the Landlord. If the Tenant shall have been insured against any
of the risks herein covered, then the proceeds of such insurance shall be paid
over to the Landlord to the extent of the Landlord's costs and expenses to make
the repairs hereunder, and such insurance carriers shall have no recourse
against the Landlord for reimbursement.

Reimbursement of Landlord

      14th: If the Tenant shall fail or refuse to comply with and perform any
conditions and covenants of the within lease, the Landlord may, if the Landlord
so elects, carry out and perform such conditions and covenants, at the cost and
expense of the Tenant, and the said cost and expense shall be payable on demand,
or at the option of the Landlord shall be added to the installment of rent due
immediately thereafter but in no case later than one month after such demand,
whichever occurs sooner, and shall be due and payable as such. This remedy shall
be in addition to such other remedies as the Landlord may have hereunder by
reason of the breach by the Tenant of any of the covenants and conditions in
this lease contained.

Inspection and Repair

      15th: The Tenant agrees that the Landlord and the Landlord's agents,
employees or other representatives, shall have the right to enter into and upon
the said premises or any part thereof, at all reasonable hours, for the purpose
of examining the same or making such repairs or alterations therein as may be
necessary for the safety and preservation thereof. This clause shall not be
deemed to be a covenant by the Landlord nor be construed to create an obligation
on the part of the Landlord to make such inspection or repairs.

Right to Exhibit

      16th: The Tenant agrees to permit the Landlord and the Landlord's agents,
employees or other representatives to show the premises to persons wishing to
rent or purchase the same, and Tenant agrees that on and after         next
preceding the expiration of the term hereof, the Landlord or the Landlord's
agents, employees or other representatives shall have the right to place notices
on the front of said premises or any part thereof, offering the premises for
rent or for sale; and the Tenant hereby agrees to permit the same to remain
thereon without hindrance or molestation.

Increase of Insurance Rates

      17th: If for any reason it shall be impossible to obtain fire and other
hazard insurance on the buildings and improvements on the leased premises, in an
amount and in the form and in insurance companies acceptable to the Landlord,
the Landlord may, if the Landlord so elects at any time thereafter, terminate
this lease and the term hereof, upon giving to the Tenant fifteen days notice in
writing of the Landlord's intention so to do, and upon the giving of such
notice, this lease and the term thereof shall terminate. If by reason of the use
to which the premises are put by the Tenant or character of or the manner in
which the Tenant's business is carried on, the insurance rates for fire and
other hazards shall be increased, the Tenant shall upon demand, pay the
Landlord, as rent, the amounts by which the premiums for such insurance are
increased. Such payment shall be paid with the next installment of rent but in
no case later than one month after such demand, whichever occurs sooner.

Removal of Tenant's Property

      18th: Any equipment, fixtures, goods or other property of the Tenant, not
removed by the Tenant upon the termination of this lease, or upon any quitting,
vacating or abandonment of the premises by the Tenant, or upon the Tenant's
eviction, shall be considered as abandoned and the Landlord shall have the
right, without any notice to the Tenant, to sell or otherwise dispose of the
same, at the expense of the Tenant, and shall not be accountable to the Tenant
for any part of the proceeds of such sale, if any.

Remedies upon Tenant's Default

      19th: If there should occur any default on the part of the Tenant in the
performance of any conditions and covenants herein contained, or if during the
term hereof the premises or any part thereof shall be or become abandoned or
deserted, vacated or vacant, or should the Tenant be evicted by summary
proceedings or otherwise, the Landlord, in addition to any other remedies herein
contained or as may be permitted by law, may either by force or otherwise,
without being liable for prosecution therefor, or for damages, re-enter the said
premises and the same have and again possess and enjoy; and as agent for the
Tenant or otherwise, re-let the premises and receive the rents therefor and
apply the same, first to the payment of such expenses, reasonable attorney fees
and costs, as the Landlord may have been put to in re-entering and repossessing
the same and in making such repairs and alterations as may be necessary; and
second to the payment of the rents due hereunder. The Tenant shall remain liable
for such rents as may be in arrears and also the rents as may accrue subsequent
to the re-entry by the Landlord, to the extent of the difference between the
rents reserved hereunder and the rents, if any, received by the Landlord during
the remainder of the unexpired term hereof, after deducting the aforementioned
expenses, fees and costs; the same to be paid as such deficiencies arise and are
ascertained each month.

Termination on Default

      20th: Upon the occurrence of any of the contingencies set forth in the
preceding clause, or should the Tenant be adjudicated a bankrupt, insolvent or
placed in receivership, or should proceedings be instituted by or against the
Tenant for bankruptcy, insolvency, receivership, agreement of composition or
assignment for the benefit of creditors, or if this lease or the estate of the
Tenant hereunder shall pass to another by virtue of any court proceedings, writ
of execution, levy, sale, or by operation of law, the Landlord may, if the
Landlord so elects, at any time thereafter, terminate this lease and the term
hereof, upon giving to the Tenant or to any trustee, receiver, assignee or other
person in charge of or acting as custodian of the assets or property of the
Tenant, five days notice in writing, of the Landlord's intention so to do. Upon
the giving of such notice, this lease and the term hereof shall end on the date
fixed in such notice as if the said date was the date originally fixed in this
lease for the expiration hereof; and the Landlord shall have the right to remove
all persons, goods, fixtures and chattels therefrom, by force or otherwise,
without liability for damages.

[ILLEGIBLE] on-Liability of Landlord

      21st: The Landlord shall not be liable for any damage or injury which may
be sustained by the Tenant or any other person, as a consequence of the failure,
breakage, leakage or obstruction of the water, plumbing, steam, sewer, waste or
soil pipes, roof, drains, leaders, gutters, valleys, downspouts or the like or
of the electrical, gas, power, conveyor, refrigeration, sprinkler,
airconditioning or heating systems, elevators or hoisting equipment; or by
reason of the elements; or resulting from the carelessness, negligence or
improper conduct on the part of any other Tenant or of the Landlord or the
Landlord's or this or any other Tenant's agents, employees, guests, licensees,
invitees, subtenants, assignees or successors; or attributable to any
interference with, interruption of or failure, beyond the control of the
landlord, of any services to be furnished or supplied by the Landlord.

[ILLEGIBLE] on-Waiver [ILLEGIBLE] Landlord

      22nd: The various rights, remedies, options and elections of the Landlord,
expressed herein, are cumulative, and the failure of the Landlord to enforce
strict performance by the Tenant of the conditions and covenants of this lease
or to exercise any election or option, or to resort or have recourse to any
remedy herein conferred or the acceptance by the Landlord of any installment of
rent after any breach by the Tenant, in any one or more instances, shall not be
construed or deemed to be a waiver or a relinquishment for the future by the
Landlord of any such conditions and covenants, options, elections or remedies,
but the same shall continue in full force and effect.
<PAGE>

Non-Performance by Landlord

      23rd: This lease and the obligation of the Tenant to pay the rent
hereunder and to comply with the covenants and conditions hereof, shall not be
affected, curtailed, impaired or excused because of the Landlord's inability to
supply any service or material called for herein, by reason of any rule, order,
regulation or preemption by any governmental entity, authority, department,
agency or subdivision or for any delay which may arise by reason of negotiations
for the adjustment of any fire or other casualty loss or because of strikes or
other labor trouble or for any cause beyond the control of the Landlord.

Validity of Lease

      24th: The terms, conditions, covenants and provisions of this lease shall
be deemed to be severable. If any clause or provision herein contained shall be
adjudged to be invalid or unenforceable by a court of competent jurisdiction or
by operation of any applicable law, it shall not affect the validity of any
other clause or provision herein, but such other clauses or provisions shall
remain in full force and effect.

Notices

      25th: All notices required under the terms of this lease shall be given
and shall be complete by mailing such notices by certified or registered mail,
return receipt requested, to the address of the portion as shown at the head of
this lease, or to such other address as may be designated in writing, which
notice of change of address shall be given in the same manner.

Title and Quiet Enjoyment

      26th: The Landlord covenants and represents that the Landlord is the owner
of the premises herein leased and has the right and authority to enter into,
execute and deliver this lease; and does further covenant that the Tenant on
paying the rent and performing the conditions and covenants herein contained,
shall and may peaceably and quietly have, hold and enjoy the leased premises for
the term aforementioned.

Entire Contract

      27th This lease contains the entire contract between the parties. No
representative, agent or employee of the Landlord has been authorized to make
any representations or promises with reference to the within letting or to vary,
alter or modify the terms hereof. No addition, changes or modifications,
renewals or extensions hereof, shall be binding unless reduced to writing and
signed by the Landlord and the Tenant.

Tax Increase

      28th: If in any calendar year during the term and of any renewal or
extension of the term hereof, the annual municipal taxes assessed against the
land and improvements leased hereunder or of which the premises herein leased
are a part, shall be greater than the municipal taxes assessed against the said
lands and improvements for the calendar year 19  , which is hereby designated as
the base year, then, in addition to the rent herein fixed, the Tenant agrees to
pay a sum equal to ________ of the amount by which said tax exceeds the annual
tax for the base year, inclusive of any increase during any such calendar year.
The said sum shall be considered as additional rent and shall be paid in as many
equal installments as there are months remaining in the calendar year in which
said taxes exceed the taxes for the base year, on the first day of each month
in advance, during the remaining months of that year. If the term hereof shall
commence after the first day of January or shall terminate prior to the last day
of December in any year, then such additional rent resulting from a tax increase
shall be proportionally adjusted for the fraction of the calendar year involved.

Mechanics' Liens

      29th: If any mechanics' or other liens shall be created or filed against
the leased premises by reason of labor performed or materials furnished for the
Tenant in the erection, construction, completion, alteration, repair or addition
to any building or improvement, the Tenant shall upon demand, at the Tenant's
own cost and expense, cause such lien or liens to be satisfied and discharged of
record together with any Notices of Intention that may have been filed. Failure
so to do, shall entitle the Landlord to resort to such remedies as are provided
herein in the case of any default of this lease, in addition to such as are
permitted by law.

Waiver of Subrogation Rights

      30th: The Tenant waives all rights of recovery against the Landlord or
Landlord's agents, employees or other representatives, for any loss, damages or
injury of any nature whatsoever to property or persons for which the Tenant is
insured. The Tenant shall obtain from Tenant's insurance carriers and will
deliver to the Landlord, waivers of the subrogation rights under the respective
policies.

Security

      31st: The Tenant has this day deposited with the Landlord the sum of
$10,800.00* as security of the payment of the rent hereunder and the full and
faithful performance by the Tenant of the covenants and conditions on the part
of the Tenant to be performed. Said sum shall be returned to the Tenant, without
interest, after the expiration of the term hereof, provided that the Tenant has
fully and faithfully performed all such covenants and conditions and is not in
arrears in rent. During the term hereof, the Landlord may, if the Landlord so
elects, have recourse to such security, to make good any default by the Tenant,
in which event the Tenant shall, on demand, promptly restore said security to
its original amount. Liability to repay said security to the Tenant shall run
with the reversion and title to said premises, whether any change in ownership
thereof be by voluntary alienation or as the result of judicial sale,
foreclosure or other proceedings, or the exercise of a right of taking or entry
by any mortgagee. The Landlord shall assign or transfer said security, for the
benefit of the Tenant, to any subsequent owner or holder of the reversion or
title to said premises, in which case the assignee shall become liable for the
repayment thereof as herein provided, and the assignor shall be deemed to be
released by the Tenant from all liability to return such security. This
provision shall be applicable to every alienation or change in title and shall
in no wise be deemed to permit the Landlord to retain the security after
termination of the Landlord's ownership of the reversion or title. The Tenant
shall not mortgage, encumber or assign said security without the written consent
of the Landlord.* - It is expressly understood that the Landlord will return to
the Tenant $3,600.00 reducing Security Deposit to $7,200 at the end of the 5th
year (May 1, 2003).

Conformation with Laws and Regulations

      The Landlord may pursue the relief or remedy sought in any invalid clause,
by conforming the said clause with the provisions of the statutes or the
regulations of any governmental agency in such case made and provided as if the
particular provisions of the applicable statutes or regulations were set forth
herein at length.

      In all references herein to any parties, persons, entities or corporations
the use of any particular gender or the plural or singular number is intended to
include the appropriate gender or number as the text of the within instrument
may require. All the terms, covenants and conditions herein contained shall be
for and shall inure to the benefit of and shall bind the respective parties
hereto, and their heirs, executors, administrators, personal or legal
representatives, successors and assigns.

      In Witness Whereof, the parties hereto have hereunto set their hands and
seals, or caused these presents to be signed by their proper corporate officers
and their proper corporate seal to be hereto affixed, the day and year first
above written.

Signed, Sealed and Delivered            580 BRIGHTON ROAD ASSOCIATES
     in the presence of
       or Attested by                   By: /s/ Thomas A. Cupo
                                        -------------------------------
    /s/ Victoria Ramos                      Thomas A. Cupo     Landlord
-------------------------------             Managing General Partner


                                        ECSI INTERNATIONAL
                                        -------------------------------
                                                                 Tenant


                                        By: /s/ Arthur Birch
                                        -------------------------------
                                            Arthur Birch
                                            President
<PAGE>

State of New Jersey, County of              ss.:

      I Certify that on                       , 19  ,

                                                       personally came before me
and acknowledged under oath, to my satisfaction, that this person (or if more
than one, each person):

      (a) is named in and personally signed this document; and
      (b) signed, sealed and delivered this document as his or her act and deed.


                                       _________________________________________
                                         (Print name and title below signature)


State of New Jersey, County of              ss.:

      I Certify that on                       , 19  ,

personally came before me, and this person acknowledged under oath, to my
satisfaction, that:

      (a)   this person is the             secretary of
                                         the corporation named in this document;
      (b)   this person is the attesting witness to the signing of this document
            by the proper corporate officer who is                  the
            President of the corporation;
      (c)   this document was signed and delivered by the corporation as its
            voluntary act duly authorized by a proper resolution of its Board of
            Directors;
      (d)   this person knows the proper seal of the corporation which was
            affixed to this document; and
      (e)   this person signed this proof to attest to the truth of these facts.


Signed and sworn to before me on       _________________________________________
                          , 19  .      (Print name of attesting witness below
                                       signature)


__________________________________


                                     Lease

                 ==============================================

                          580 BRIGHTON ROAD ASSOCIATES

                                       TO

                               ECSI INTERNATIONAL

                 ==============================================
                 Dated, March                            , 1998
                 ==============================================

                 Expires, April 30, 2008

                 Rent, $473,025.00


                 Prepared by:


ASSIGNMENT OF LEASE

      For one dollar and other good and valuable consideration, the Tenant as
Assignor, assigns this Lease and all the Assignor's rights and privileges
therein, including any and all monies deposited with the Landlord as security,
subject to all the terms, covenants and conditions contained therein; and the
Assignee accepts this Assignment of Lease and assumes and agrees to comply with
and be bound by the terms, covenants and conditions in said Lease contained. The
signature of the Landlord hereto is evidence of the Landlord's consent to and
acceptance of this Assignment of Lease.


__________________________________            __________________________________
                          Assignee                                      Assignor



                                              __________________________________
                                                                        Landlord

<PAGE>

                                 RIDER TO LEASE
                                     BETWEEN
                          580 BRIGHTON ROAD ASSOCIATES
                                       AND
                               ECSI INTERNATIONAL

For premises located at
790 BLOOMFIELD AVENUE, CLIFTON, NEW JERSEY

The provisions contained in the paragraphs in this Rider shall control to the
extent that they are inconsistent with provisions contained in paragraphs 1st
through 31A.

32.   REPAIRS: The Tenant shall, at its sole expense, make all necessary repairs
      to the leased premises, including but not limited to the boiler, heating
      system, plumbing system, electrical system, sewage system and other
      utility systems and equipment, windows, window glass, fixtures, and all
      appliances, and their appurtenances, and all equipment used in connection
      with the leased premises, except for repairs to the roof, structural walls
      and parking lot. Repairs to the roof, structural walls and parking lot
      shall be the responsibility of the Tenant, only in the event that the
      roof, structural walls or parking lot is damaged as a result of the
      Tenant's operations or negligence. Such repairs, ordinary as well as
      extraordinary, shall be made promptly as and when necessary. All repairs
      shall be in quality and class at least equal to the original work.
      Repairs, alterations and improvements shall be done using workmanlike
      standards. All work shall be performed in compliance with all applicable
      laws, ordinances, codes, rules and regulations. The Tenant shall be
      responsible for maintaining the painting and decoration of the interior of
      the leased premises. On default of the Tenant in making such repairs the
      Landlord may, but shall not be required to make such repairs and
      replacements, for the Tenant's account, and the expense thereof, together
      with 1 1/2% interest per month thereon shall constitute and be collectable
      as additional rent. Landlord shall provide Tenant with written notice of
      default and a twenty (20) day period to cure prior to Landlord undertaking
      said repairs. The Landlord represents that the condition of the mechanical
      systems in the premises are in good working order and will be maintained
      by the Landlord at the Landlord's sole expense for the first year of this
      Lease. Thereafter, all repairs will be the sole responsibility of the
      Tenant. However, replacements of the heating, ventilation or air
      conditioning systems will be prorated between the Landlord and the Tenant
      as follows: The Tenant shall pay that proportion of the replacement equal
      to the number of years it has been a tenant at the premises divided by the
      age of the failed mechanical system. For example if the heater needs to be
      replaced after four years following the commencement of the Tenant's
      tenancy hereunder and the heater was 16 years old at that time, the Tenant
      will pay twenty-five (25%) percent (4 divided by 16) of the heater
      replacement.

33-A  IMPROVEMENTS TO LEASEHOLD PREMISES:

      (a) Subject to the representation set forth in Paragraph 33B, the Landlord
      will complete the following improvements:

      The Landlord shall build Office Space per attached plan. All offices to be
      painted, carpeted, air-conditioned. Landlord shall install a new entrance
      on side of the building. All expenses incurred for improvements by
      Landlord. See Schedule "B".

      The Landlord shall construct the leased premises in accordance to the
      Plans prepared by J. Thomas Camlet & Sons. Plans shall be approved prior
      to commencement of construction by both the Landlord and the Tenant.

      (b) All alterations being constructed by the Landlord to the leased
      premises pursuant to this Lease shall be done in a good and workmanlike
      manner and substantially completed prior to the commencement of the term
      of this Lease. Landlord reserves the right to extend the time period to
      complete for thirty days provided the work is started and substantially
      completed before the commencement date. In the event the Landlord fails to
      complete the work prior to the expiration of the extension period,
      Landlord shall be in default and tenant may elect to terminate the lease.
      Tenants' election to terminate shall be provided to Landlord, in writing,
      within ten (10) days after the expiration date of the applicable time
      period for completion or such right of termination shall be waived.


                                       1
<PAGE>

      (c) Notwithstanding the provisions of paragraph four (4) of this Lease,
      all trade fixtures, equipment and movable furniture of the Tenant shall at
      all times, remain the properties of the Tenant and can be removed by
      Tenant at any time, provided that the same can be removed without damage
      to the leased premises, and the leased premises are restored to their
      original condition or better.

33-B. Landlord represents that all of the systems, equipment, windows, glass,
      roof, fixtures, and all appliances shall be in good working order as of
      the commencement date of the lease.

34.   TENANTS OBLIGATION TO PAY RENT: Under no condition shall the Tenant fail
      to pay rent when due and owing under the provision of this lease. Any
      claims, which the Tenant may have against the Landlord, shall not be
      offset against rent or additional rent herein provided to be paid by the
      Tenant. If the Tenant shall fail or refuse to comply with and perform any
      conditions and covenants of this Lease, the Landlord, if the Landlord so
      elects, may, but shall not be obligated to, carry out and perform such
      conditions and convenants at the cost and expense of the Tenant, plus
      interest at the rate of one-and-one half percent (1.5%) for each month
      due. The said costs and expenses shall be payable on demand, or, at the
      option of the Landlord, shall be added to the installment of rent due
      immediately thereafter but in no case later than one (1) month after such
      demand, whichever occurs sooner. This remedy shall be in addition to any
      other remedies, which the Landlord may have by reason of the breach by the
      Tenant of any of the convenants and conditions contained in this lease.
      The Landlord shall have the right to commence summary proceeding or such
      other legal actions against Tenant for non-payment or other deficiencies
      or defaults by the Tenant under this Lease.

35.   ISRA COMPLIANCE: Tenant shall, at Tenant's own expense, comply with the
      Environmental Cleanup Responsibility Act, N.J.S.A 13.lk-6 et seq. and the
      regulations promulgated thereunder ("ISRA") and all applicable
      Environmental Laws, Regulations, Codes and Standards including but not
      limited to the Spill Compensation and Control Act, N.J.S.A. 58:10-23.11
      and the Environmental Rights Act, N.J.S.A. 2A:35A-1. Tenant shall, at
      Tenant's own expense, make all submissions to, provide all information to,
      and comply with all requirements of, the Bureau of Industrial Site
      Evaluation (the "Bureau") of the New Jersey Department of Environmental
      Protection (NJDEP") and any and all applicable Federal Laws. Should the
      Bureau or any other division of NJDEP or the Federal Government determine
      that a cleanup plan be prepared, and/or that a cleanup be undertaken
      because of any spills or discharges of hazardous or toxic substances or
      wastes at the premises which occur during the term of this Lease, then
      Tenant shall, at Tenant's own expense, prepare and submit the required
      plans and financial assurances and carry out the approved plans. Landlord
      shall be responsible for all pre existing conditions; Tenant has right to
      review our files in reference to NJDEP.

      Tenant's obligations under this paragraph shall arise if there is any
      closing, terminating or transferring of its operations at the premises
      pursuant to ISRA or applicable Federal Laws, whether triggered by Landlord
      or by the Tenant. At no expense to Landlord, Tenant shall promptly provide
      all information, affidavits, testing or sampling of the demised premises
      as requested by Landlord or NJDEP in connection with any ISRA submission
      by Landlord.

      Should Tenant's operation at the premises be outside of those industrial
      operations covered by ISRA, Tenant shall, at Tenant's own expense, obtain
      a letter of non-applicability from NJDEP prior to the termination of the
      Lease term and shall promptly provide non-applicability submission and the
      NJDEP non-applicability letter to Landlord.

      Tenant shall commence its ISRA submission to the NJDEP in anticipation of
      the end of the Lease term no later than one (1) year prior to the
      expiration of the Lease term. Tenant shall promptly furnish the Landlord
      true and complete copies of all documents, submissions and correspondence
      provided by Tenant to NJDEP and all documents, reports, directives and
      correspondence provided by NJDEP to Tenant. Tenant shall also promptly
      furnish to Landlord true and complete copies of all sampling and test
      results and reports obtained and prepared from samples and tests taken at
      and around the Premises.

      Prior to the termination of the Lease, Tenant shall obtain either i) a
      non-applicability letter, ii) a negative declaration, or (iii) final
      approval of cleanup from NJDEP.


                                       2

<PAGE>

      Tenant shall indemnify defend and save harmless Landlord from all fines,
      suits, procedures, claims and actions of any kind arising out or of in any
      way connected with any spills or discharges of hazardous or toxic
      substances or wastes at the premises which occur due to Tenant's use or
      occupancy, and from all fines, suits, procedures, claims and actions of
      any kind arising out of Tenant's failure to provide all information, make
      all submissions and take all action required by the ISRA, the Bureau, or
      any other division of NJDEP or the Federal government arising out of the
      Tenant's use and occupancy of the Premises.

      Tenant's obligation and liabilities under this paragraph shall continue so
      long as Landlord remains responsible for any spills or discharges of
      hazardous or toxic substances or wastes at the premises which occur during
      the term of this Lease. Tenant's failure to abide by the terms of this
      paragraph shall be restrainable by injunction. Tenant's default under this
      paragraph shall constitute a material default and conditional limitation
      hereunder.

      Tenant agrees that this Lease may be terminated upon ninety (90) days'
      notice that Tenant's use violates the Environmental provisions of this
      lease or fails to comply with any applicable Environmental Law, Regulation
      or Code, and is not curable, in Landlord's reasonable opinion within said
      ninety (90) day period. Tenant shall, in any event, remain liable for all
      costs and liabilities incurred as a result of its operations or the
      cessation thereof, which liability shall survive the expiration or sooner
      termination of this Lease.

      Tenant shall not be responsible for any liabilities which arise or may
      arise as a result of any activities or occurrences at or about the demised
      premises, which occurred prior to Tenant's occupancy and shall be
      responsible only for such liabilities as may arise as a result of or
      relating to Tenant's use. Landlord represents that there are no known
      spills or discharges of hazardous substances within Tenants space.
      Landlord and Tenant acknowledge that the entire property is subject to on
      going ECRA/ISRA clean up. The tenant shall not be responsible for any
      costs regarding said ECRA/ISRA clean up.

      In the event that there shall be filed a lien against the Premises by the
      New Jersey Department of Environmental Protection ("Department"), pursuant
      to and in accordance with the provisions of the Spill Compensation and
      control Act (N.J.S.A. 58:10-23.11 et seq.), as a result of the chief
      executive of the New Jersey Spill Compensation Fund having expended monies
      from said fund to pay for "Damages", as such term is defined in N.J.S.A.
      58:10-23.11g, and/or "Cleanup and Removal Costs" as such term is defined
      in N.J.S.A. 58:10-2311b(d), arising from an intentional or unintentional
      action or omission or Tenant resulting in the releasing, spilling,
      pumping, pouring, emitting, emptying or dumping of "Hazardous Substances",
      as such term is defined in N.J.S.A. 58:100-23111 b(k), into the waters of
      the State of New Jersey or onto lands from which it might flow or drain
      into said waters, then Tenant shall, within thirty (30) days after the
      date that Tenant is given notice that the lien has been placed against the
      Premises or within such shorter period of time in the event that the State
      of New Jersey has commenced steps to cause the Premises to be sold
      pursuant to the lien, either (A) pay the claim and remove the lien from
      the Premises, or (B) furnish a bond, letter of credit, cash or other
      security reasonably satisfactory to Landlord in an amount sufficient to
      discharge the claim out of which the lien arises.

      In the event that the Department shall serve upon Tenant a directive to
      remove or arrange for the removal of discharge of any hazard substances on
      the Premises, and Tenant shall not comply with the directive within thirty
      (30) days from its date or such other period as described therein, to the
      satisfaction of the Department, such noncompliance shall constitute an
      event of default, unless Tenant shall furnish a bond, letter of credit,
      cash or other security reasonably satisfactory to Landlord in an amount
      sufficient to pay the costs of taking the actions required by said
      directive.

36.   ENVIRONMENTAL COMPLIANCE AND WARRANTIES:

      (a) (i) "Hazardous Substances" include any pollutants, dangerous
      substances, toxic substances, hazardous wastes, hazardous materials, or
      hazardous substances as defined in or pursuant to the Environmental
      Cleanup Responsibility Act, as amended, N.J.S.A. 13:1K-6, et seq.
      ("ISRA"); the Spill Compensation and Control Act, as amended, N.J.S.A.
      58:10-23.11, et seq. ("SPILL ACT"); the Solid Waste Management Act, as
      amended, N.J.S.A. 13:1E-1, et seq.; the Resource and Conservation Recovery
      Act, as amended, 42 U.S.C. |_|6901, et seq. ("RCRA"); the Comprehensive
      Environmental Response, Compensation, and Liability Act, as amended, 42
      U.S.C. |_|9601 ("CERCLA") or any other present or future federal, state or
      local environmental law, ordinance, rule or regulation.


                                       3
<PAGE>


      (ii) "Release" means releasing, spilling, leaking, pumping, pouring,
      omitting, emptying, discharging, injecting, leaching, disposing or
      dumping.

      (iii) "Notice," means any summons, citation, directive, order, claim,
      litigation, investigation, proceeding, judgment, letter or other
      communication, written or oral, actual or threatened from the New Jersey
      Department of Environmental Protection and Energy ("NJDEPE"), the United
      States Environmental Protection Agency ("USEPA"), or other federal, state
      or local agency or authority, or any other entity or any individual,
      concerning any act or omission resulting or which may result in the
      Releasing of Hazardous Substances into the waters or onto the lands of the
      State of New Jersey, or into waters outside the jurisdiction of the State
      of New Jersey, or into the environment, as such terms are defined in
      CERCLA.

      (iv) "Environmental Laws" shall include (A) CERCLA; (B) RCRA; (C) ISRA;
      (D) the Spill Act; (E) New Jersey Underground Storage of Hazardous
      Substances Act, as amended, N.J.S.A. 58:10A-21, et seq; (F) the New Jersey
      Water Pollution Control Act, as amended, N.J.S.A., 58:10A-1, et seq.
      ("WPCA"); (G) the Air Pollution Control Act, as amended, N.J.S.A.,
      26:2C-1, et seq. ("APCA"); and (H) any and all present or future laws,
      statutes, ordinances, regulations and executive orders, federal and state
      and local in any way related to the protection of human health or the
      environment.

      (b) Except in connection with the Tenant's permitted use of the demised
      premises under this Lease, the demised premises shall not be used or
      occupied by the Tenant to generate, manufacture, refine, transport, treat,
      store, handle, dispose, transfer, or process any Hazardous Substances,
      except on written permission of the Landlord, which permission may be
      arbitrarily withheld. Nothing in this lease shall prohibit the Tenant from
      using Hazardous Substances in amounts which are customary and necessary in
      connection with the Tenants permitted use of the demised premises, in
      which case the Tenant shall comply with all laws in connection with such
      use. In no case shall the demised premises be used by the Tenant in such
      manner that it is considered a Major Facility as that term is defined
      under the Spill Act.

      (c) Tenant shall indemnify, defend and hold the Landlord harmless from and
      against any and all liabilities, losses and costs or claims by third
      parties, including all governmental authorities, including the Landlord's
      reasonable counsel fees which the Landlord may incur related to Tenant's
      violation of Environmental Laws arising out of or incident to Tenant's use
      of the demised premises. Tenant convenants and agrees to notify the
      Landlord within a reasonable amount of time of any Notice served upon it
      with respect to any such claim that the Tenant has violated Environmental
      Laws. Tenant further warrants and represents that upon Notice of such
      violations it will take reasonable steps to halt, remedy or cure the
      violations which have been caused solely by the Tenant, by its use of the
      demised premises.

      (d) The Landlord represents and warrants there exists no Notice related to
      Hazardous Substances or contamination in connection with the demised
      premises.

      (e) Tenant warrants and represents that its Standard Industrial
      Classification ("SIC") number which most closely describes the Tenant's
      anticipated operations at the demised premises, as defined by the most
      recent edition of the Standard Industrial Classification Manual published
      by the Federal Executive Office of the President, Office of Management and
      Budget is 3699-3665 which is not that of an industrial establishment as
      defined under ISRA and agrees that it will not change its business
      operations in any manner so as to render Tenant's anticipated operation
      subject to ISRA without the prior written consent oF Landlord.

      (f) At all times after the effective date of the Lease, the Tenant shall,
      at its sole cost and expense, fulfill, observe and comply with, and keep
      its operations and the demised premises, in compliance with any and all
      Environmental Laws relating to Tenant's operations. Tenant shall be
      responsible for obtaining all permits required pursuant to any
      Environmental Laws relating to its operations. The Landlord shall be
      solely responsible for the condition of the demised premises as of the
      effective date of the Lease, including, but not limited to, the presence
      of Hazardous Substances on the demised premises and any Hazardous
      Substances affecting the demised premises during the term of the Lease
      caused by the Landlord, its agents, employees or invitees, including
      contractors and Subcontractors. The Tenant shall be responsible for any
      Hazardous Substances affecting the demised premises caused by Tenant's
      operations during the term of the Lease. Notwithstanding anything herein,
      in the event of the presence of Hazardous Substances on the demised
      premises, the Tenant and the Landlord shall make reasonable measures to
      mitigate damages to the demised premises to the extent the Tenant and the
      Landlord are capable of doing so.


                                       4

<PAGE>

      (g) Notwithstanding anything to this lease to the contrary, Tenant shall
      not be responsible for the cleanup or remediation of any Hazardous
      Substances on the demised premises prior to the commencement date of this
      lease. Tenant shall co-operate with Landlord in Landlord's compliance with
      ISRA and other environmental laws, statutes, ordinances, rules and
      regulations.

37.   LANDLORD'S CONSENT: Wherever herein the Landlord's consent is required for
      any action by the Tenant, such consent shall not be unreasonably withheld.

38.   LANDLORDS LIABILITY/INDEMNIFICATION: It is expressly agreed that the
      Landlord shall not be liable for any damage or injury to person or
      property how-so-ever caused which may be sustained by the Tenant or other
      person, including, without limitation, any damage or injury caused by or
      resulting from fire, explosion, steam, gas, electricity, water, rain, snow
      or leaks from any part of the Building or from the pipes, appliances or
      plumbing works or from the roof, street or sub-surface or from any other
      place or by dampness or caused by or resulting from any act or failure to
      act on the part of other tenants or persons in said building or from any
      other cause of what-so-ever nature, unless caused by or due to the
      intentional or tortious act of Landlord or its agents.

      Neither Landlord nor any of its agents, employees, licensees and/or
      invitees shall be liable for any damage to property of Tenant or other
      entrusted to employees of the building; or for loss of or damage to any
      property of Tenant by theft or otherwise, or for any injury or damage to
      persons or property resulting from any cause of what-so-ever nature,
      including the negligence of Landlord, unless caused by or due to the
      intentional or tortious act of Landlord or its agents. Landlord or its
      agents will not be liable for any such damage caused by other tenants or
      persons in, upon or about said building or caused by operations in
      construction of any private, public or quasi-public work.

      Tenant covenants and agrees to indemnify and save Landlord harmless
      against and from any and all claims by or on behalf of any person, firm,
      corporation or other entity or entities arising from or in connection with
      Tenant's use of or from any work or thing what-so-ever done in or about
      the demised premises or any part thereof during the term of this Lease,
      other than those based on the intentional or tortious act of Landlord or
      its agents. Tenant shall further indemnify and save harmless Landlord
      against and from all liabilities, obligations, damages, penalties, claims,
      costs and expenses for which Landlord shall not be reimbursed by
      insurance, including reasonable attorney's fees and disbursements paid,
      suffered or incurred as a result of any breach by Tenant, Tenant's agents,
      contractors, employees, invitees or licensees, of any covenant or
      condition of this Lease, or the carelessness, negligence or improper or
      tortious conduct of Tenant, Tenant's agents, contractors, employees,
      invitees, or licensees, Tenant's liability under this Lease extends to the
      acts and omissions of any subtenant, and any agent, contractor, employee,
      invitee or licensee of any subtenant. In case any action or proceeding is
      brought against Landlord by reason of any such claim, Tenant, upon written
      notice from Landlord, will, at Tenant's expense, resist or defend such
      action or proceeding by counsel appointed by Tenant's insurer or by
      counsel approved by Landlord in writing, such approval not to be
      unreasonably withheld.

      The liability of Landlord for Landlord's obligations under this Lease
      shall not exceed and shall be limited to Landlord's interest in the
      Buildings and the real property located at 790 Bloomfield Avenue, Clifton,
      New Jersey of which it forms a part, and Tenant shall not look to any
      other property or assets of Landlord in seeking either to enforce
      Landlord's obligations under this Lease or to satisfy a judgment for
      Landlord's failure to perform such Obligations. No other property or
      assets of Landlord shall be subject to levy, execution or other
      enforcement procedure.

39.   LATE CHARGES AND PERFORMANCE BY LANDLORD OF TENANT OBLIGATIONS: If Tenant
      shall fail to pay all or any part of any installment of the Base Monthly
      Rent or Additional Rent for more than ten (10) days after the same shall
      have become due and payable, Tenant shall pay as Additional Rent to
      Landlord a late charge of four and one-half (4-1/2) cents for each dollar
      of the amount of such rent and/or Additional Rent which shall not have
      been paid to Landlord within such ten (10) days after having become due
      and payable.

      The late charge payable pursuant to this paragraph shall be; (a) payable
      on demand and (b) without prejudice to any of Landlord's rights and
      remedies hereunder or at law or in equity for


                                       5

<PAGE>

      non-payment or late payment of rent or other sum and shall be in addition
      to any such rights and remedies.

      No Failure by Landlord to insist upon the strict performance by Tenant of
      Tenant's obligations to pay late charges as provided in this paragraph
      shall constitute a waiver by Landlord of its right to enforce the
      provisions of this paragraph in any instance thereafter occurring. The
      provisions of this paragraph shall not be construed in any way to extend
      the grace periods, if any, or notice periods provided for in any other
      paragraphs of this Lease.

      If the Tenant shall default in the performance of any covenant, agreement
      term, provision or condition herein contained, Landlord, without thereby
      waiving such default, may, but shall not be obligated to, perform the same
      for the account and at the expense of Tenant without notice in the case of
      emergency and in other cases if such default continues after five (5)
      business days from the date of the giving by Landlord to Tenant of written
      notice of such intention. Any reasonable expense incurred by Landlord in
      connection with any such performance by Landlord on account of Tenant
      shall be immediately due and payable by Tenant as Additional Rent under
      this Lease, together with interest thereon at the rate of eighteen percent
      (18%) per annum.

40.   SUBORDINATION. FINANCIAL STATEMENT AND NON-DISTURBANCE CLAUSE: This Lease
      is subject and subordinate to all mortgages which may now or hereafter
      affect such leases or the real property of which the demised premises are
      a part and to all renewals, modifications, consolidations, replacements
      and extensions of any such underlying mortgages. This clause shall be
      self-operative, and no further instrument of subordination shall be
      required by any mortgage affecting any lease or the real property of which
      the demised premises are a part. In confirmation of such subordination,
      Tenant shall execute, within five (5) days of receipt, any certificate or
      document that Landlord may request. Upon Tenant's failure to execute any
      such certificate within said five (5) days, Tenant hereby appoints
      Landlord as Tenant's irrevocable attorney-in-fact to execute any such
      document on behalf of Tenant. Tenant's default hereunder shall constitute
      a material default under the Lease entitling Landlord to all available
      remedies including, but not limited to, termination of Tenant's interest
      in and under this Lease. Upon the request of Landlord and as required by
      any financial institution with which Landlord is dealing, Tenant shall
      provide, at its expense, current financial statements to the Landlord,
      which statements, if required, shall be submitted to Lenders in regard to
      renewals, modifications, consolidations, replacements and/or extensions of
      Landlord's mortgages and/or loans.

41.   COMMON CHARGES:

      a) In addition to the base rent, the Tenant shall pay to Landlord during
      the term of this Lease the following additional rents, without deduction,
      set off unless otherwise provided for purposes of the additional rents
      listed in i) and ii) below the lessee's Proportionate Share shall be
      10.40%.

      (i) "Real Estate Taxes" - The Tenant agrees to pay as additional rent its
      Proportionate Share of any and all real estate taxes assessed, imposed, or
      levied against the building and land located at Block #5607 and lot 15 for
      any period during the term, within five (5) days of the Landlord's
      delivery of copies of any bills for same, or the Landlord's estimated bill
      for same. If the Landlord bills the Tenant on an estimated basis, the
      Landlord may do so monthly. Adjustments shall be made upon the landlord's
      receipt of all appropriate bills. Any underpayment shall be payable by the
      Tenant to the Landlord as additional rent within five (5) days after the
      Landlord's delivery of any bill to the Tenant, and any overpayment shall
      be credited to Tenant's next required payment of rent. The term "tax"
      shall include the following; real estate taxes and all other taxes which
      may be levied in lieu of or in addition to real estate taxes, assessments,
      taxes on personal property owned by the Landlord and used on the building,
      taxes or any other levy assessed against the Landlord on account of rent
      (except for income taxes), and all other governmental charges or levies of
      any kind and nature for public improvements, services or benefits which
      are assessed, levied or become payable during the term of this Lease,
      including any tax directly substituted for any real property taxes, and
      all the cost and expenses of contesting such taxes. Any payments owed for
      partial calendar years shall be calculated based on the number of months
      this Lease is in effect for that calendar year. The Landlord represents to
      the Tenant that real estate taxes for the calendar year 1998 are estimated
      in the amount of $64,509.76 and the Tenant's Proportionate Share is 10.40%
      if the lease term fully encompassed such tax year.

      (ii) "Operation and Maintenance Expenses" - The Tenant shall pay to the
      Landlord an amount equal to the Tenant's Proportionate Share multiplied by
      the Landlord's operating and maintenance expenses in connection with the
      building and land. The term "operation and


                                       6

<PAGE>

      maintenance expense" shall mean all costs of operating, maintaining and
      managing the building and land on which it is located, including, but not
      limited to, costs of snow removal and insurance. Any work required under
      this Paragraph 41-a-(ii) which is building-wide or a replacement of a
      system servicing the leased premises shall be performed by Landlord, and
      Tenant shall pay its Proportionate Share in the manner determined by
      multiplying such expenses by a fraction, the numerator of which is the
      number of years of the Term remaining ("Balance of Term") (including any
      exercised renewal), and the denominator of which is the item's useful life
      ("Useful Life") for depreciation purposes pursuant to Internal Revenue
      Code Regulations, as amended. For Example, if at the commencement of the
      third year of a six year Lease, the Landlord is required to install an
      additional sprinkler system throughout the Building at a cost of
      $40,000.00 and a Useful Life of 20 years, and Tenant's Proportionate Share
      is 35 % the amount Tenant shall pay for such installation, shall be as
      follows:

      Proportionate Share x (Balance of Term x Cost)=
      -----------------------------------------------
                         Useful Life

                    35% x (3 years) x $40,000=
                    --------------------------
                        20 years
                    35% x (.15 x $40.000) = $2,100.00

      If Tenant exercises the option in Paragraph 46, an additional cost of
      $5,600.00 (calculated as [3 years + 5 years/20 years] x $40,000 x 35%)
      shall be due on renewal.

      b) Tenant agrees to pay as additional rent its proportionate share of
      standby fire line charges.

      c) The provisions of this paragraph 41 shall survive termination of this
      Lease.

42.   BROKERS: Tenant represents and warrants that it has not dealt with any
      broker in connection with this Lease, other than Cupo Realty Company, Inc.
      and Tenant does hereby agree to indemnify and hold Landlord harmless from
      and against any and all loss, costs, damage or expense (including, without
      limitation, brokerage commissions or finder's fee claims or other
      compensation, and attorney's fees and disbursements) which may be incurred
      by the Landlord by reason of any claim of or liability to any other broker
      or entity who shall claim to have dealt with the Tenant in connection with
      this lease.

43.   INSURANCE: In addition to the insurance provisions set forth in paragraph
      8 of this Lease, the Landlord shall keep the building, of which the
      demised premises is a part, insured against fire, accident or other
      damage, all risk at replacement cost. Tenant, as additional rental, and as
      provided above, shall reimburse the Landlord for cost of such insurance to
      the extent it is increased because of Tenant's use of the demised
      premises. It is understood and agreed that the Tenant shall, at its own
      expense, insured its fixtures, equipment, furnishings and other personal
      effects at the demised premises and that the Landlord shall have no
      Liability thereof or for any loss or damage thereto.

      The Tenant's insurance policy pursuant to paragraph 8 of the Lease shall
      contain the express provisions naming Landlord as an insured party in
      stating that (a) no act or omission of the Tenant shall affect or limit
      the obligation of the insurance company to pay the amount of any loss
      sustained; and (b) such policy shall be non-cancellable or terminate with
      respect to the Landlord without 30 days prior notice to the Landlord by
      certified mail, return receipt requested, which notice shall contain the
      policy number and the names of the insured and certificate holder.
      Landlord represents that it maintains general liability insurance covering
      the leased premises in amounts customary for similar businesses.

44.   ASSIGNMENT SUBLEASING: Paragraph 9 of the Lease is modified as follows:

      (a) This Lease may not be subleased or assigned, without the prior written
      consent of the Landlord, which consent shall not be unreasonably withheld
      or delayed. The Tenant shall notify the Landlord in writing of the
      proposed assignment or sublease, which notice shall include the names of
      the proposed assignee or sub lessee (if not a public corporation, the
      names of all shareholders or partners); a detailed description of the
      nature of the business of the proposed assignee or sub lessee; a detailed
      description of all terms and conditions of the proposed assignment or
      sublease; and financial statements of the proposed assignee or sub lessee.


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<PAGE>

      (b) The Landlord shall have the right to reject the sublease or assignment
      if it is not reasonably satisfied with the financial condition of any
      proposed assignee or sub lessee and/or the terms and conditions of any
      proposed assignment or sublease.

      (c) Any and all consideration received by the Tenant from the proposed
      assignee or sublease shall be paid to the Landlord to the extent rent is
      due under this lease.

      (d) Not-with-standing the Landlord's consent to the proposed assignment or
      sublease, the Tenant shall remain liable for all obligations arising under
      this Lease; and

      (e) Not-with-standing the forgoing, upon receipt of the written notice
      from the Tenant of its intention to assign or sublease the entire portion
      of the leased premises which has not been previously sublet or assigned,
      the Landlord shall have 15 days in which to elect to recapture the entire
      leased premises and release the Tenant from its future obligations under
      this Lease, except for any obligation which has accrued or is intended to
      survive termination of this Lease.

45.   (DELETED)

46.   RENEWAL TERM: The Tenant shall have the right, to be exercised as
      hereinafter provided, to renew the term of this lease for one (1) period
      of Five (5) years on the following terms and conditions:

      (a) No default by Tenant is existing or continuing in the performance of
      any of the terms of this Lease and no event has occurred which with the
      giving of notice or passage of time, or both, would constitute an event of
      default.

      (b) The renewal term shall be on the same terms, covenants and conditions
      as provided in this lease, with exception of rental payments.

      (c) The Tenant shall exercise its right to renew in the following manner:
      at least six (6) months prior to the expiration of the initial term, the
      Tenant shall notify the Landlord in writing, by certified mail, return
      receipt requested, of its election to exercise the right to renew the
      terms of this Lease for the renewal term. Time is of the essence with
      respect to exercising of this right. Upon the Landlord's receipt of such
      notice of election, this lease and the terms thereof, subject to the term
      of this provision shall be deemed to be renewed for a period of five (5)
      years from the date of expiration of the initial terms without the
      execution of any further lease or instrument.

      (d) The annual rent for the first year and all subsequent years of the
      renewal term shall be established in accordance with Fair Market rental
      for comparable commercial properties at the expiration of the initial
      term. In the event the Landlord and the Tenant are unable to negotiate a
      fair market rental for the renewal term, the Landlord and Tenant each
      shall select a licensed appraiser, who shall then select a mutually
      agreeable third licensed appraiser and they collectively shall establish
      fair market rental for the renewal period, which determination shall be
      binding upon both the Landlord and the Tenant. Notwithstanding the above,
      rent for the renewal term shall not be less than the rent paid in the
      final year of the initial lease period.

      (e) The Landlord and the Tenant, respectively, shall be responsible for
      the fees and expenses of the appraiser they have selected under paragraph
      (d) herein. The Landlord and the Tenant shall share equally the fees and
      expenses of the third appraiser.

47.   CERTIFICATE OF OCCUPANCY: The Tenant, at it's own cost and expense, shall
      apply for a Certificate of Occupancy from the City of Clifton to operate
      its business on the leased premises. The Tenant shall diligently take all
      steps required to obtain a Certificate of Occupancy. The Landlord shall
      cooperate with the Tenant, at the Tenant's expense, to the extent
      necessary; to perfect any applications required to obtain a Certificate of
      Occupancy, including the execution of all papers and documents pertaining
      thereto. Landlord shall make any repairs necessary to obtain the
      Certificate of Occupancy except the repair or installation of improvements
      specifically required because of the operation of the tenant's business.


                                       8
<PAGE>

48.   ACCESS: The Landlord shall be entitled to access to the leased premises,
      upon reasonable notice to the Tenant, to conduct appraisals, environmental
      tests and environmental clean-up or remediation.

49.   RESTRICTIONS ON USE: The Tenant shall not do or permit anything to be done
      in or about the leased 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, or use or allow the leased premises to be used for
      any immoral, unlawful objectionable purposes. No loudspeakers or other
      similar device, system or apparatus which can be heard outside the leased
      premises shall, without the prior written approval of the Landlord, be
      used in or at the leased premises. The Tenant shall not commit, or suffer
      to be committed, any waste upon the leased premises or any nuisance
      (public or private) or other act or thing of any kind whatsoever that may
      disturb the quiet enjoyment or cause unreasonable annoyance of any other
      tenant in the building.

50.   COMPLIANCE WITH LAWS: The landlord represents that to the best of its
      knowledge, it has not received notice of any violation of any law,
      regulation or ordinance affecting the leased premises.

51.   ADDITIONAL AGREEMENT: Landlord shall allow tenant access into the leased
      premises prior to the commencement date for the purpose of installing
      equipment. However, tenant shall provide all insurance coverage required
      under this lease, as a condition to obtain access to the lease premises.

52.   The Floor Plan contained in Schedule "B" is amended to reflect that a
      kitchen sink and cabinets are to be installed in the dining room.

IN WITNESS WHEREOF, this Rider to Lease has been executed on behalf of the
Landlord and Tenant on March, 6th 1998.


WITNESS:                               580 BRIGHTON ROAD ASSOCIATES


/s/ [ILLEGIBLE]                        BY: /s/ Thomas A. Cupo
------------------------                   -------------------------------------
                                           Thomas A. Cupo
                                           Managing General Partner


ATTEST:                                ECSI INTERNATIONAL


                                       BY: /s/ Arthur Birch
------------------------                   -------------------------------------
                                           Arthur Birch
                                           President


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