Document:

COMMERCIAL LEASE

                                  (Triple Net)

This lease entered into January 20, 2000 between Fairmont Commerce Center,  LLC,
("Lessor") and Sitek, Incorporated, a Delaware Corporation ("Lessee").

                                   WITNESSETH:

1. PREMISES.

In  consideration  of the rents and  covenants  herein set forth,  Lessor hereby
leases to Lessee and Lessee hereby rents from Lessor the premises shown outlined
on Exhibit "A" attached hereto (hereinafter referred to as the "Premises").  The
Premises is located at 1919 West Fairmont Suites 1 through 6, in Tempe,  Arizona
as part of  Fairmont  Commerce  Center,  1919  West  Fairmont,  Tempe  AZ  85282
hereinafter  referred  to  as  the  "Project".  The  Premises  is  comprised  of
approximately  29,181  square feet of rentable  area.  The lease of the Premises
shall be for the term,  upon the rentals and subject to the terms and conditions
set forth in this Lease Agreement and Exhibits hereto.

2. TERM.

With  respect  to Suites 1, 2, 3 and 4, the term of this  Lease  shall be for 36
months,  commencing  on June 1, 2000,  and  terminating  on May 31,  2003.  With
respect to Suite 5, the term of this Lease  shall  commence on March 1, 2000 and
terminate on May 31, 2003. With respect to Suite 6, the term of this Lease shall
commence as soon as the new demising wall between Suite 6 and the adjacent Suite
7 is completed and a  Certificate  of Occupancy is obtained for Suite 6 from the
City of Tempe, whichever is the last to occur and terminate on May 31, 2003.

3. RENT.

3.1 Lessee shall pay to Lessor as rent for the  Premises  monthly  payments,  in
advance,  on the first day of each month during the term of this Lease Agreement
as follows:

     RENTS PRIOR TO JUNE 1, 2000

     From March 1, 2000 to May 31, 2000 the rent for Suite 5 shall be 00.00 per
     month.

     From date of delivery of Suite 6 to May 31, 2000, the rent for Suite 6
     shall be 00.00 per month.

     RENTS FROM AND AFTER JUNE 1, 2000

     From June 1, 2000 to May 31, 2001 the rent shall be $15,000.00 per month
     From June 1, 2001 to May 31, 2002 the rent shall be $16,000.00 per month
     From June 1, 2002 to May 31, 2003 the rent shall be $17,000.00 per month

In addition, Lessee shall pay any privilege, excise, sales, gross receipts, rent
or other tax levied or assessed by any governmental  authority against Lessor in
respect  to the rent or other  charges  due under  this  lease or as a result of
Lessor's receipt of such rents or other charges.

3.2 Rent for any period  during the term hereof which is for less than one month
shall be a pro rata portion of the monthly installment. Rent shall be payable in
lawful  money of the  United  States  to Lessor at the  address  referred  to in
paragraph  30 hereof or to such other  persons or at such other places as Lessor
may  designate  in  writing.  Rent  shall be  payable  without  notice,  demand,
deduction or any offset whatever.

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3.3 In the event  Lessee  fails to make any  installment  payment of rent within
five (5) days of the date due,  without  written  demand or notice for  payment,
then  Lessee  shall,  the next day,  pay to Lessor a late  charge  equal to five
percent (5%) of the amount due. In addition, such delinquent amount and the late
charge shall bear interest  from the due date of the rent as provided  herein at
the rate of twenty percent (20%), per annum, until paid.

4. SECURITY DEPOSIT.

4.1 Lessor  acknowledges  that  Lessee has  already  paid a  $6,780.00  security
deposit under Lessee's current Lease.  Lessee hereby agrees to pay an additional
$10,220.00 to bring the total security  deposit to $17,000.00.  Lessee shall pay
to Lessor upon execution hereof the sum of $10,220.00 as additional security for
the faithful  performance  and  observance  by Lessee of the terms of this Lease
Agreement.  It is agreed that in the event Lessee  defaults in respect of any of
the terms of this Lease Agreement, including, but not limited to, the payment of
rent and  additional  rent,  Lessor may,  in  addition  to any other  rights and
remedies it may have, use, apply or retain the whole or any part of the security
so deposited to the extent  required for the payment of any rent and  additional
rent or any other sum as to which  Lessor may expend or be required to expend by
reason  of  Lessee's  default  in  respect  of any of the  terms  of this  Lease
Agreement.  If Lessor  applies  any part of said  deposit to cure any default of
Lessee,  Lessee  shall upon demand  deposit with Lessor the amount so applied so
that Lessor shall have the full deposit on hand at all times during the terms of
this Lease Agreement.

4.2 In the event that Lessee shall fully and  faithfully  comply with all of the
terms and conditions of this Lease Agreement,  the security shall be returned to
Lessee  without  interest after the date fixed as of the end of the term of this
Lease  Agreement and after delivery of the entire  possession of the Premises to
Lessor.  In the event of a sale or lease of the  Project,  Lessor shall have the
right to  transfer  the  security  to the  vendee or  lessee  and  Lessor  shall
thereupon  be  released  by Lessee  from all  liability  for the  return of such
security, and Lessee agrees to look solely to the new landlord for the return of
said security, and it is agreed that all of the provisions hereof shall apply to
every transfer or assignment made of the security to a new landlord.

5. USES AND SUITABILITY.

5.1 Use.  The  Premises  shall  be used  and  occupied  by  Lessee  for only the
following purposes and for no other purposes  whatsoever,  without obtaining the
prior  written  consent  of  Lessor  which  consent  shall  not be  unreasonably
withheld:  General  office  and  assembly,  manufacture,   storage  and  use  of
electronic and semiconductor equipment and related activities.

5.2 Suitability. The acceptance of possession of the Premises by Lessee shall be
deemed to  conclusively  establish  that  Lessee has  accepted  the  Premises as
complete for all purposes. In any event this Lease Agreement shall be subject to
all applicable zoning ordinances and to any municipal, county and state laws and
regulations   governing  and  regulating   the  use  of  the  Premises.   Lessee
acknowledges that neither Lessor nor Lessor's agent has made any  representation
or warranty as to the  suitability  or condition of the Premises for the conduct
of Lessee's business.

5.3 Uses Prohibited.

     5.3.1  Lessee  shall not do or permit  anything  to be done in or about the
Premises which will increase the existing rate of insurance upon the building in
which the Premises are contained  (unless Lessee shall pay any increased premium
as a result  of such use or acts) or cause  the  cancellation  of any  insurance
policy  covering said Premises or any building,  nor shall Lessee sell or permit
to be kept,  used or sold in or about said  Premises any  articles  which may be
prohibited by a standard form of policy of fire insurance.

     5.3.2  Lessee  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
Lessees or  occupants of the Project or injure or annoy them or use or allow the
Premises to be used for any unlawful or objectionable purposes, nor shall Lessee
cause,  maintain or permit any  nuisance  in, on or about the  Premises.  Lessee
shall not commit or suffer to be committed any waste in or upon the Premises.

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     5.3.3 Lessee shall not use the Premises or permit anything to be done in or
about the Premises which will in any way conflict with any law, statute,  zoning
restriction,  ordinance or  governmental  rule or regulation or  requirements of
duly  constituted  public  authorities  now in force or which may  hereafter  be
enacted or  promulgated.  Without  the prior  written  consent of Lessor,  which
consent  must not be  unreasonably  withheld,  Lessee  shall not (either with or
without  negligence)  cause  or  permit  the  escape,  generation,  manufacture,
storage,  disposal or release of any hazardous substances or materials in, on or
about the Premises or Project.  With respect to any such hazardous substances or
materials which have been approved by Lessor in writing,  Lessee shall not allow
the storage or use of such  substances or materials in any manner not sanctioned
by law and by the highest  standards  prevailing in the industry for the storage
and use of such  substances  or  materials,  nor  allow to be  brought  into the
Project any such materials or substances except to use in the ordinary course of
Lessee's  business,  and then only in quantities  approved by Lessor in writing.
Without  limitation,  hazardous  substances  and  materials  shall include those
described  in  the  Comprehensive   Environmental  Response,   Compensation  and
Liability Act of 1980, as amended, 42 U.S.C.  Section 9601 et seq., the Resource
Conservation and Recovery Act, as amended,  42 U.S. C. Section 6901 et seq., any
applicable state or local laws and the regulations  adopted under these acts. In
all events,  Lessee shall indemnify Lessor in the manner  elsewhere  provided in
this Lease  Agreement  from any release of  hazardous  materials on the Premises
occurring  while Lessee is in possession,  if caused by Lessee or persons acting
under  Lessee.  The within  covenants  shall  survive the  expiration or earlier
termination of the term of this Lease Agreement.

6. REAL PROPERTY TAXES AND COMMON AREA EXPENSES.

6.1 For purposes of this Lease, the following terms shall be defined as follows:

     (a) The term "Common Areas" shall be defined to mean those areas to be used
in common with others  entitled  thereto,  except the  Premises  and all similar
areas leased to others or reserved to Lessor's  exclusive  use. The Common Areas
include, without limitation, parking areas, service roads and areas, loading and
dock  facilities,   sidewalks,   courtyards,  gardens,  and  such  other  common
additional areas and facilities as may be REASONABLY designated as a part of the
Common Areas from time to time by Lessor.

     (b) The term "Common Area Expenses" shall be defined to mean the total cost
and expense  incurred by Lessor or Lessor's  agents in operating and maintaining
the Common  Areas  actually  used or  available  for use by Lessee and  Lessee's
employees,  agents, servants, customers and other invitees, excluding only items
of expense commonly known and designated as carrying  charges,  but specifically
including,  without  limitation,  all sums  expended  by Lessor  for  gardening,
repairing,  repaving,  painting,  restriping,  cleaning,  sweeping, planting and
landscaping, janitorial services, pest control, traffic control, security guards
or systems, repairs, preventive and routine maintenance, line painting, lighting
and other utilities,  directional signs and other markers and bumpers,  sanitary
control,  including,  without limitation, all costs of maintaining and operating
any  air   conditioning   and  heating,   sewer,   septic,   or  waste  disposal
installations,  removal of  garbage,  trash and other  refuse,  depreciation  on
machinery  and  equipment  used in such  maintenance,  cost of all utilities and
services  consumed or performed on the Common  Areas,  required  fees or charges
levied pursuant to any governmental  authority,  and a management fee (which may
be payable to Lessor or its  affiliates),  not to exceed  current  market rates.
Lessor  shall also have the right to include  the cost of public  liability  and
property  damage  insurance  on the  Common  Areas  as part of the  Common  Area
Expenses or to separate  such cost and bill Lessee  separately  for its pro rata
share thereof.

     (c) The term "Real  Property  Taxes" shall be defined to mean all taxes and
assessments  imposed upon the real property and permanent  improvements  thereto
comprising  the Project,  or  applicable to the Premises and Common Areas or any
portion thereof, but shall not include personal income taxes,  personal property
taxes,  inheritance  taxes or franchise  taxes  levied upon the Lessor,  but not
directly against said real property,  even though such taxes may or shall become
alien against said real  property.  Any such Real Property Taxes for the year in
which  this  Lease   commences  or  ends  shall  be  apportioned   and  adjusted
accordingly.  With respect to any assessment which may be levied against or upon
the  Project or the  Premises  and which,  under the laws then in force,  may be
evidenced by  improvements or other bonds payable in annual  installments,  only
the annual payments on such assessments shall be included in computing  Lessee's
obligation for Real Property Taxes.

     (d) Lessee's pro rata share of Real Property Taxes and Common Area Expenses
shall be determined based upon the ratio of the gross floor area of the Premises
to the gross floor area of the building  and/or complex of buildings  comprising
the Project.  In this regard, the parties agree that Lessee's pro rata share for
Suite 5 is 5.5% and Lessee's pro rata share for Suites 5 and 6 is 12.9%. In this
regard, the parties hereby agree that commencing June 1, 2000, Lessee's pro rata

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share for  Suites 1 through 6 shall be  thirty-four  point one  percent  (34.1%)
based upon  application of the above formula to the facts prevailing at the date
hereof. The "gross floor area" is the area measured in square feet to the center
of all party walls and the exterior face of all other exterior walls. Changes in
any gross floor area  occurring  during any monthly period shall be effective on
the first day of the next  succeeding  month,  and the amount of any gross floor
area in effect for the whole of any monthly  period  shall be the average of the
total amounts in effect on the first day of each calendar month.

     (e)  Notwithstanding  the  foregoing,  any  expense  incurred  by Lessor or
Lessor's  agents  in  maintaining  the  Common  Area  that  exceeds  the  sum of
$50,000.00  shall be  amortized  over the  succeeding  sixty (60) month  period.
Lessee  shall pay its pro rata share for such Common Area  Expense in sixty (60)
equal  consecutive  monthly   installments   commencing  the  month  immediately
following the month in which such expense was incurred, provided, however Lessee
shall not be liable for any such  installments  which first become payable after
May 31, 2003.

6.2 Throughout the term of this Lease, Lessee shall pay to Lessor, as additional
rent, the following:

     (a) All Real Property Taxes  applicable to the Premises  during the term of
this  Lease  together  with  Lessee's  pro  rata  share of Real  Property  Taxes
applicable  to the  Common  Areas;  provided,  however,  in the  event  the Real
Property  Taxes  applicable  to the  Premises  are not  separately  assessed and
identified  by  separate  tax bill or  otherwise,  the  amount  due from  Lessee
hereunder shall be Lessee's pro rata share of Real Property Taxes  applicable to
the Project; and

     (b) Lessee's pro rata share of Common Area Expenses.  Such  additional rent
shall be computed  annually,  but may be estimated by Lessor and collected  from
Lessee on a monthly  basis,  together  with the rent  provided  in  paragraph  3
hereof.   Lessor  shall  provide  Lessee  with  a  reconciliation   of  Lessee's
contributions  toward Real Property  Taxes and Common Area Expenses on an annual
basis. If such  reconciliation  shall determine that Lessee's  contributions are
insufficient to satisfy Lessee's  obligations  hereunder,  as finally determined
and actually incurred by Lessor for such period, Lessee shall immediately pay to
Lessor any such deficiency. Any contributions by Lessee in excess of such actual
expenses  shall be credited to any amounts owed by Lessee  under this Lease,  or
refunded to Lessee, at Lessor's election.

7. PERSONAL PROPERTY TAXES.

Lessee shall pay prior to delinquency all taxes assessed or levied upon Lessee's
occupancy of the Premises or upon Lessee's trade fixtures, furniture,  equipment
and  all  other  personal  property  of  Lessee  contained  in the  Premises  or
elsewhere. When possible,  Lessee shall cause said trade fixtures,  furnishings,
equipment and all other personal  property to be assessed and billed  separately
from the real property of Lessor.

8. UTILITIES.

All utilities shall be separately metered for the Premises, and Lessee shall pay
when  billed  and  before   delinquent  all  charges  for  gas  (if  available),
electricity, air conditioning, heating, telephone, janitorial services and other
utilities or services  furnished to the Premises or to Lessee during the term of
this Lease  Agreement.  Lessee shall keep the Premises free of any liens created
by Lessee's  failure to make such  payments.  If any  utility is not  separately
metered,  Lessee  agrees to promptly  pay when  billed,  as  additional  rent, a
reasonable portion to be determined by Lessor of all charges jointly metered.

9. DAMAGE OR DESTRUCTION.

9.1 Except as otherwise provided in this Lease Agreement,  in the event that the
Premises or the Project is damaged by fire or other  casualty  fully  covered by
Lessor's  insurance,  such  damage  shall be  repaired  by and at the expense of
Lessor.  Until such repairs are completed,  and except to the extent such damage
is caused by Lessee or its agent or employees,  the rent payable hereunder shall
be abated  in  proportion  to the  portion  of the  Premises  which is  rendered
unusable by Lessee in the conduct of its  business.  In no event shall Lessor be
obligated to spend more than the net  insurance  proceeds  received by Lessor on
account of any casualty in order to repair or restore the Premises.

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9.2 In the event such repairs cannot,  in the reasonable  opinion of Lessor,  be
substantially  completed  within  sixty (60) days after the  occurrence  of such
damage (without the payment of overtime or other  premiums),  Lessor may, at its
option,  exercisable by giving  reasonable  notice to Lessee,  make such repairs
with due diligence.  In such event,  this Lease Agreement shall continue in full
force and effect and the rent  payable by Lessee  hereunder  shall be reduced as
above set forth until such repairs are completed.

9.3 In the event Lessor  determines in its reasonable  opinion that such repairs
cannot be substantially completed within such sixty (60) day period and does not
elect to make such  repairs  during a  reasonable  time in excess of such 60-day
period,  then either Lessor or Lessee may, by written  notice given to the other
within ten (10) additional days,  terminate this Lease Agreement effective as of
the date of the occurrence of such damage.

9.4 With  respect to any damage which Lessor is obligated to repair or elects to
repair, Lessee waives the provisions of Arizona Revised Statutes, Section 33-343
(which section deals with Lessee's  rights to termination in the event of damage
or destruction of the Premises).

9.5 Lessor shall not under any  circumstances be required to make any repairs to
or replacements of any paneling,  decoration,  office fixtures, railing, ceiling
or floor covering, partitions or any other property installed in the Premises by
Lessee.

9.6 Notwithstanding anything to the contrary above, in the event of damage to or
destruction  of all or any portion of the  Premises or the Project to the extent
of five  percent  (5%) or more of the then  insurable  replacement  value of the
Project,  Lessor  shall  have the right to  terminate  this Lease  Agreement  by
written  notice to Lessee,  given within thirty (30) days after the date of such
damage,  destruction or  declaration.  Upon the giving of any such notice,  this
Lease Agreement shall terminate.

9.7 In the event  that the  damage  or cost of repair is less than five  percent
(5%) of the  replacement  value,  or in the  event  Lessor  does  not  elect  to
terminate this Lease  Agreement,  the Lease Agreement shall remain in full force
and effect and the Premises shall be repaired and rebuilt in accordance with the
other provisions of this Lease Agreement.

10. LIABILITY INSURANCE.

10.1 During the term of this Lease Agreement,  Lessee shall at Lessee's expense,
maintain general public liability insurance against claims for injury,  wrongful
death or property damage occurring upon, in or about the Premises with companies
and in form  acceptable to Lessor,  with minimum  limits of One Million  Dollars
($1,000,000.00)  on account of bodily injuries to or death of one person,  Three
Million  Dollars  ($3,000,000) on account of bodily injuries to or death of more
than one person as the result of any one  accident  or  disaster,  and  property
damage   insurance  with  minimum  limits  of  One  Hundred   Thousand   Dollars
($100,000.00). Lessee shall add the name of Lessor to the policies and agrees to
insure  the  interest  of Lessor so long as this Lease  Agreement  is in effect.
Lessee shall file proof of insurance with Lessor prior to Lessee's possession of
the  Premises.  Lessee  hereby  releases  and  waives  any  and  all  rights  of
subrogation against Lessor, and Lessee shall ensure that such policy or policies
of insurance shall contain a waiver of subrogation clause as to Lessor.

10.2  During the entire  term of this  Lease,  Lessor  shall,  at the expense of
Lessee as set forth  below,  procure  and  maintain  the  following  policies of
insurance:

     (a) Commercial general liability  insurance for personal injury,  death and
property damage occurring on the Common Areas,  the limits of liability  thereof
to be in such amounts as Lessor may reasonably  require under the  circumstances
existing from time to time; and

     (b) "Special Form" property  coverage  insurance  against loss due to fire,
vandalism,  malicious mischief, sprinkler leakage and special extended perils in
an amount  adequate to cover the full cost of replacement of the Premises.  Said
insurance  shall  provide  for  payment of loss  thereunder  to Lessor or to the
holders of  mortgages  or deeds of trust on the  Premises.  Lessee  shall pay to
Lessor,  as additional  rent,  the cost of the insurance to be carried by Lessor
pursuant  hereto;  provided,  however,  if the cost  applicable  to the Premises

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cannot  otherwise be  separately  identified,  the  amount(s)  payable by Lessee
hereunder  shall be  determined  based upon the ratio of the gross floor area of
the Premises to the gross floor area of the building and/or complex of buildings
comprising the Project,  in a manner  consistent  with paragraph  6.1(d) hereof.
Lessee agrees to pay to Lessor such amount(s) within ten (10) days after written
demand  is sent  by  Lessor  to  Lessee  accompanied  by the  insurance  premium
notice(s) and evidence of the amount due. Notwithstanding the foregoing,  Lessor
shall have the option to include the cost of the  insurance  on the Common Areas
set  forth in  subparagraph  (a)  hereof  as part of the  Common  Area  Expenses
pursuant to paragraph 6 hereof,  instead of billing  Lessee  separately for such
cost.

11. LIABILITY AND INDEMNIFICATION.

11.1  Lessee  shall  indemnify  and hold  Lessor  harmless  from and against all
liabilities,  obligations,  losses, damages, penalties,  claims, actions, suits,
costs, charges and expenses,  including reasonable attorneys' fees, which may be
imposed upon or incurred by or asserted  against  Lessor arising from any breach
or default by Lessee, from any use, non-use or condition of the Premises created
by or attributable to Lessee or Lessee's employees, customers, agents, invitees,
licensees,  guests  or  lessees,  and  from  any  negligence,  act  or  omission
attributable  to Lessee or  Lessee's  employees,  customers,  agents,  invitees,
licensees,  guests or lessees.  In the event that any action or proceeding shall
be brought  against  Lessor by reason of any claim referred to in this paragraph
11.1, Lessee,  upon written notice from Lessor,  shall at Lessee's sole cost and
expense  resist or defend the same through  counsel  selected by Lessor.  Lessor
shall not be liable for any damage to or theft of any personal property,  goods,
commodities or materials in or about the Premises. Lessee agrees that Lessor and
Lessor's agents,  employees and servants shall not be liable,  and Lessee waives
all claims for damage to property and business sustained during the term of this
Lease Agreement by Lessee occurring in or about the Project,  resulting directly
or indirectly from any existing or future condition,  defect, matter or thing in
the  Premises,   the  Project  or  any  part  thereof,   or  from  equipment  or
appurtenances  becoming out of repair or from accident,  or from any occurrence,
act or omission of Lessor, Lessor's agents, employees or servants, any tenant or
occupant of the Project or any other person.

11.2 The term  "Lessor" as used in this Lease  Agreement  so far as covenants or
obligations  on the part of Lessor  are  concerned  shall be limited to mean and
include only the owner or owners of the Project at the time in question,  and in
event of any  transfer or  conveyance  the then grantor  shall be  automatically
freed and released from all personal  liability accruing from and after the date
of such transfer or conveyance  as respects the  performance  of any covenant or
obligation  on the  part of  Lessor  contained  in this  Lease  Agreement  to be
performed, it being intended hereby that the covenants and obligations contained
in this  Lease  Agreement  on the part of Lessor  shall be  binding  on the then
Lessor only during and in respect to its period of ownership.  In the event of a
sale or conveyance  by Lessor of the Project,  the same shall operate to release
Lessor from any future liability upon any of the covenants or conditions  herein
contained and in such event Lessee  agrees to look solely to the  responsibility
of the  successor  in  interest of Lessor in and to this Lease  Agreement.  This
Lease Agreement shall not be affected by any such sale or conveyance, and Lessee
agrees to attorn to the purchaser or grantee,  which  purchaser or grantee shall
be personally  obligated on this Lease Agreement only so long as it is the owner
of Lessor's interest in and to this Lease Agreement.  Furthermore, Lessee agrees
to look  solely to Lessor's  interest  in the  Project  for the  recovery of any
judgment  from  Lessor,  it being  agreed  that  Lessor and each of its  general
partners shall never be personally liable for any such judgment.

12. EMINENT DOMAIN.

If the Premises  shall be taken,  or if a substantial  portion  thereof shall be
taken,  which shall prevent Lessee from conducting its business under this Lease
Agreement,  by proper  authority  for  public or  quasi-public  use,  Lessee may
terminate  this  Lease  Agreement  by  giving  Lessor  written  notice  of  such
termination  within two (2) months  after such  taking and the rent shall  abate
during the unexpired  portion of this Lease  Agreement,  effective from the date
when  possession  of the part so taken shall be required for the use and purpose
for which it has been taken.  If only a part of the Premises is so taken and the
part not so taken shall be sufficient  for the  reasonable  use of the remainder
for the  purpose of Lessee's  business  under this Lease  Agreement,  this Lease

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Agreement  shall remain in full force and effect,  except that the rent shall be
reduced in proportion of Project  square  footage to which the Premises so taken
bears to the Premises  originally leased. All compensation  awarded for any such
taking shall belong to and be the property of Lessor.

13. REPAIRS.

13.1  Lessor  shall make all  necessary  repairs to the  exterior  walls,  roof,
structural components,  plumbing,  electrical wiring and air conditioning system
of the Project of which the Premises are a part except exterior  glass,  windows
and doors.  Lessor  also shall  maintain  and keep in good  repair the  exterior
lighting,  parking  areas,  docks  and  sidewalks  appurtenant  to the  Project.
Notwithstanding  anything to the  contrary,  any damage  caused or  permitted by
Lessee, or by Lessee's employees,  agents or invitees, to the Premises or to the
Project shall be repaired by Lessee, or at Lessor's election,  Lessor may repair
such damage at the expense of Lessee and Lessee shall promptly  reimburse Lessor
for such expense upon Lessor's demand.

13.2 Lessee,  at Lessee's  expense,  shall  maintain and keep the Premises in as
good order,  condition and repair,  including doors, windows and interior glass,
as they were at the time Lessee took possession of the same, reasonable wear and
tear excepted.  Lessee shall keep the Premises in a neat and sanitary condition.
All repairs,  restorations and replacements  shall be in quality and class equal
to the original work.

13.3 Lessee agrees to notify Lessor promptly of any defective condition known to
Lessee  which  Lessor is  required  to repair,  and the  failure to report  such
defects shall make Lessee  responsible to Lessor for any  additional  liability,
cost or  expense  incurred  by Lessor by reason of  Lessee's  failure  to notify
Lessor of such defect. Lessor shall be under no duty to inspect the Premises.

14. LIENS.

     If the  Premises,  or any part  thereof,  or  Lessee's  leasehold  interest
therein, shall at any time during the term of the Lease Agreement become subject
to the lien of any  vendor,  mechanic,  laborer  or  materialman  based upon the
furnishing of materials or labor to Lessee or the Premises and contracted for by
Lessee,  Lessee  shall cause the same,  at Lessee's  expense,  to be  discharged
within fifteen (15) days after notice thereof.

15. NUISANCE.

15.1 Notwithstanding anything in this Lease Agreement to the contrary, including
without  limitation  the  use by  Lessee  of the  Premises  in  accordance  with
paragraph 5  hereunder,  Lessee shall not commit or permit any nuisance or other
act, whether noise, odor, smoke,  sewerage,  chemical waste or otherwise,  which
may disturb the quiet enjoyment of any other tenants of Lessor in the Project.

15.2 Lessee shall not obstruct or cause to be  obstructed  any public or private
roadways,  sidewalks or common areas appurtenant to the Project,  or any parking
areas or docking areas of other  tenants of Lessor in the Project.  In the event
Lessee commits or permits any nuisance or act set forth in this  paragraph,  the
same shall be a material breach of this Lease Agreement.

16. ASSIGNMENT AND SUBLETTING.

16.1 Lessee  shall not  voluntarily  or by  operation  of law assign,  transfer,
mortgage or encumber this Lease Agreement,  or any interest  therein,  and shall
not sublet the Premises or any part  thereof or suffer any other  person  (other
than the  employees  and agents of Lessee) to occupy or use the  Premises or any
portion thereof, without obtaining Lessor's prior written consent.

                                                                               7
<PAGE>
16.2 Regardless of Lessor's  consent,  no subletting or assignment shall release
Lessee from Lessee's obligations or alter the primary liability of Lessee to pay
the  rent and to  perform  all  other  obligations  to be  performed  by  Lessee
hereunder.  The  acceptance of rent by Lessor from any other person shall not be
deemed a waiver by Lessor of any provision hereof.  Consent to one assignment or
subletting  shall  not  be  deemed  consent  to  any  subsequent  assignment  or
subletting.  In the event of default by any assignee of Lessee or any  successor
of Lessee,  in the  performance  of any of the terms hereof,  Lessor may proceed
directly  against  Lessee without the necessity of exhausting  remedies  against
said  assignee.  Lessor may consent to subsequent  assignments  or subletting of
this Lease or  amendments  or  modifications  to this Lease  with  assignees  of
Lessee,  without  notifying  Lessee,  or any  successor  of Lessee,  and without
obtaining its or their consent  thereto and such action shall not relieve Lessee
of liability under this Lease.

16.3 In the event  Lessee  shall  assign or sublet the  Premises  or request the
consent of Lessor to any  assignment or  subletting,  or if Lessee shall request
the consent of Lessor for any act Lessee  proposes  to do, the Lessee  shall pay
Lessor's reasonable attorneys' fees incurred in connection therewith.

17. SURRENDER OF PREMISES AND HOLDING OVER.

17.1 Except as provided hereinafter,  upon the expiration or earlier termination
of this Lease,  Lessee shall quit and surrender the Premises,  "broom-clean," in
good condition and repair  (reasonable wear and tear excepted).  If the Premises
are not surrendered at the end of the Lease term,  Lessee shall indemnify Lessor
against loss or liability  resulting from delay by Lessee in so surrendering the
Premises,  including,  without  limitation,  any claims  made by any  succeeding
tenant based on such delay.

17.2 If  Lessee  or any  successor  in  interest  of  Lessee,  should  remain in
possession  of the  Premises  after the  expiration  of the Lease  term  without
executing a new lease,  then such  holding  over shall be construed as a tenancy
from  month to  month,  subject  to all the  covenants,  terms,  provisions  and
obligations of this Lease except Minimum Monthly Rent, which shall be subject to
an automatic  increase of twenty-five  percent (25%),  over and above the amount
paid in the last full calendar month of the Lease term. Nothing contained herein
shall be construed as Lessor's permission for Lessee to hold over.

18. DEFAULT.

18.1 If Lessee  fails to pay any rents  when due within ten (10) days of the due
date,  or if Lessee  commits a breach under  paragraph  17 hereof,  or if Lessee
defaults  in the  performance  of any  other  term or  covenant  of  this  Lease
Agreement,  and any such default is not cured within five (5) days after written
notice  thereof  from Lessor to Lessee,  then,  in any such event Lessor may, at
Lessor's option, terminate this Lease Agreement and/or re-enter the Premises and
remove  all  persons  and  all or  any  property  therefrom  either  by  summary
dispossess  proceedings or by any other suitable  action or proceeding at law or
by force or otherwise, without being guilty of trespass or liable to indictment,
prosecution or damage therefor,  and repossess and enjoy the Premises,  together
with all  improvements,  additions,  alterations,  installations  and  fixtures,
without such  re-entry and  repossession  working a forfeiture  or waiver of the
rents to be paid and the  covenants to be  performed  by Lessee  during the full
term of this Lease Agreement, and upon such termination or re-entry, Lessee will
quit and  surrender  the Premises to Lessor,  but Lessee shall remain  liable as
hereinafter provided.  Upon termination of this Lease Agreement or expiration of
Lessee's  right to occupy the Premises by reason of the  happening of any of the
foregoing  events, or in any other manner or circumstances  whatsoever,  whether
with or without legal proceedings,  by reason of or based upon or arising out of
a default or breach of this Lease  Agreement on the part of Lessee,  or upon the
happening of any default  hereunder,  Lessor may, at its option, at any time and
from time to time,  relet the  Premises  or any part or parts  thereof,  for the
account of Lessee or  otherwise,  and receive  and  collect  the rent  therefor,
applying  the same  first to the  payment  of such  expenses  as Lessor may have
incurred in recovering possession of the Premises, including attorneys' fees and
expenses  for putting the same into good order and  condition  or  preparing  or
altering  the same  for  re-rental  to the  extent  Lessor  deems  necessary  or
desirable  and all other  expenses,  commissions  and charges  paid,  assumed or
incurred  by  Lessor  in or  about  reletting  the  Premises  and  then  to  the
fulfillment  of the covenants of Lessee  hereunder.  Any such  reletting  herein
provided for may be for the  remainder of the term of this Lease  Agreement,  as
originally  granted,  or for a longer or shorter  period.  Lessor shall have the
right to change the character and use made of the Premises, and Lessor shall not
be required to accept any substitute  tenant offered by Lessee or to observe any
instructions  given by Lessee up to the later of the time of such termination of
this Lease  Agreement  or of such  recovery  of  possession  of the  Premises by

                                                                               9
<PAGE>
Lessor, as the case may be, and thereafter,  except in a case in which liability
of Lessee as  hereinafter  provided  arises  by reason of the  happening  of the
insolvency of Lessee, Lessee covenants and agrees, if required by Lessor, to pay
to Lessor until the end of the initial term of this Lease Agreement,  and/or any
renewal  term,  as the case may be,  the  equivalent  of the  amount of all rent
reserved  hereunder,  and all other charges required to be paid by Lessee,  less
the net proceeds of reletting,  if any.  Lessor shall have the election in place
of and instead of holding Lessee so liable  forthwith to recover  against Lessee
as damages for loss of the bargain and not as a penalty,  an aggregate sum which
at the time of such  termination of this Lease  Agreement or of such recovery of
possession of the Premises by Lessor,  as the case may be,  represents  the then
present worth of the excess,  if any, of the aggregate of the rent and all other
charges  payable by Lessee  hereunder that would have accrued for the balance of
the initial  term,  and/or any renewal  term,  as the case may be, over the then
present  worth of the fair market  rents and all other  charges for the Premises
for the balance of such term. In addition,  upon any default  hereunder,  Lessor
shall have the right to exercise in connection therewith or separately any other
rights or remedies provided by law.

18.2 The rights and  remedies of Lessor shall  include,  but are not limited to,
enforcement  of any rights and  privileges  hereunder by  mandatory  injunction,
restraining  order or other equitable relief. In the event of re-entry by Lessor
as hereinabove provided,  Lessor shall not be or become responsible for or incur
any  liability  to Lessee or other  persons for any  personal  property,  goods,
commodities  or materials in or about the Premises at the time of re-entry,  the
Lessor may store or dispose of such personal  property,  goods,  commodities  or
materials at the expense of Lessee with  payment  therefore to be made by Lessee
upon demand of Lessor.

19. INSOLVENCY.

In addition to any other rights or remedies of Lessor  hereunder,  if Lessee, at
any time during the term of this Lease Agreement,  shall be or become insolvent,
or if Lessee  shall  compound  Lessee's  debts or sign over  Lessee's  estate or
effects for payment thereof, or if any sheriff, marshal,  constable or any other
officer  take  possession  of  the  Premises  by  virtue  of  any  execution  or
attachment,  or if any receiver or trust is appointed of any property of Lessee,
or in the event Lessee shall be adjudged bankrupt, then and in any such event it
shall be lawful  for  Lessor at  Lessor's  election  to enter  into and upon the
Premises,  or any part thereof, and to have, hold and possess and enjoy the same
as in the Lessor's former estate, discharged from these presents, and this Lease
Agreement  shall  thereupon  be  terminated,  anything  herein  contained to the
contrary notwithstanding.

20. LEGAL EXPENSES.

In the event of any suit instituted by either Lessor or Lessee against the other
in any way connected with this Lease  Agreement,  or for the recovery of rent or
possession  of the  Premises,  the  successful  party to any such  action  shall
recover  from the other  party  reasonable  attorneys'  fees and Court  costs in
connection with said suit.

21. LESSOR'S RIGHT.

In the event that Lessee does not pay before  delinquent any taxes,  assessments
or other charges to be paid hereunder by Lessee,  Lessor shall have the right to
make such payment and to thereupon charge Lessee for the amount of such payment,
together  with  interest  thereon  from the date of such  payment to the date of
repayment by Lessee to Lessor at the rate of twenty percent (20%), per annum.

                                                                               9
<PAGE>
22. SUBORDINATION.

22.1 This Lease  Agreement  and the estate  granted  hereby shall be subject and
subordinate to the lien of any mortgage or mortgages  which now or hereafter may
constitute  alien on the  Premises,  and to any  agreements  at any  time  made,
modifying,  supplementing,  extending or renewing any such mortgages;  provided,
however,  that Lessor shall attempt to obtain from the mortgagee  under any such
mortgage an  agreement  in  substance  that,  so long as Lessee  shall not be in
default  in the terms of this Lease  Agreement,  this  Lease  Agreement  and the
estate  hereby  granted  shall  not  be  terminated.   The  provisions  for  the
subordination  of this Lease  Agreement and the estate  hereby  granted shall be
self  operative  and no further  instruments  shall be  required  to effect such
subordination;  provided,  that the parties  hereto  shall,  upon request by any
mortgagee at any time or times, execute and deliver any and all instruments that
may be reasonably necessary or proper to effect such subordination or to confirm
or evidence the same.

22.2  Lessee  shall at any time upon not less than ten (10) days  prior  written
notice from Lessor  execute,  acknowledge  and deliver to Lessor a statement  in
writing:  (a)  certifying  that this Lease  Agreement is unmodified  and in full
force and effect (or, if modified  stating the nature of such  modification  and
certifying  that this Lease  Agreement  as so modified in full force and effect)
and the date to which the rent and other  charges are paid in  advance,  if any;
(b)  acknowledging  that there are not any  uncured  defaults on the part of the
Lessor  hereunder,  or  specifying  such  defaults if any are claimed.  Any such
statement  may  be  conclusively  relied  upon  by a  prospective  purchaser  or
encumbrancer of the Premises.  Lessee's failure to deliver such statement within
such time shall be deemed Lessee's acknowledgment that: (i) This Lease Agreement
is in full force and effect,  without  modification except as may be represented
by Lessor; (ii) There are no uncured defaults in Lessor's performance; and (iii)
Not more than one month's  rent has been paid in advance.  If Lessor  desires to
sell,  finance or refinance  the Premises,  or any part  thereof,  Lessee hereby
agrees to deliver to any purchaser or lender  designated by Lessor sce# THE MOST
RECENTLY AVAILABLE financial statements of Lessee. All such financial statements
shall be  received  by  Lessor  in  confidence  and  shall be used  only for the
purposes therein set forth.

23. SIGNS.

No signs,  advertisements  or notices shall be placed by Lessee visible from the
outside of the Project,  whether  walls,  roofs,  windows,  sidewalks,  doors or
otherwise,  except such as shall  first be approved in writing by Lessor,  which
approval  shall not be  unreasonably  withheld.  If such  approval  by Lessor is
given,  such signs,  advertisements or notices shall be installed and maintained
at Lessee's expense and shall conform to all applicable governmental laws, rules
and  regulations.  The standard  sign  criteria for the Premises is set forth on
Exhibit "D" which is attached hereto and incorporated herein by this reference.

24. PROJECT RULES.

Lessee shall abide by all rules and regulations of the Project imposed by Lessor
for the  cleanliness,  good  appearance,  proper  maintenance,  good  order  and
reasonable use of the Premises and the Project by all the tenants of the Project
and their clients, customers and employees. The rules and regulations, a copy of
which are attached hereto as Exhibit " C" and made a part hereof, may be changed
from time to time on reasonable  notice to Lessee. A breach of Project rules and
regulations shall be a material breach of this Lease Agreement.

25. RIGHT OF ENTRY.

Lessor may, during the term of this Lease Agreement, at all reasonable times and
during  usual  business  hours,  enter  upon the  Premises  for the  purpose  of
inspection of same or for the purpose of showing same to prospective lenders and
purchasers,  and in addition, may, at any time within the last six (6) months of
the term of this Lease Agreement show, the Premises to prospective lessees.

                                                                              10
<PAGE>
26. SURRENDER.

Upon the  expiration  of the term of this  Lease  Agreement,  or upon the  early
termination  of this  Lease  Agreement,  Lessee  shall  surrender  up  peaceable
possession  of the  Premises in the same  condition  as the  Premises are at the
commencement of this Lease Agreement, reasonable wear and tear is excepted.

27. CERTAIN RIGHTS RESERVED BY LESSOR.

Lessor  reserves the following  rights  exercisable  without  notice and without
liability to Lessee and without  effecting an eviction,  constructive or actual,
or disturbance  of Lessee's use or  possession,  or giving rise to any claim for
set off or abatement of rent:  (a) to control,  install,  affix and maintain any
and all signs on the  property,  or on the  exterior  of the  Project and in the
corridors,  entrances and other common areas thereof,  except those signs within
the Premises not visible from outside the Premises; (b) to reasonably designate,
limit, restrict and control any service in or to the Project,  including but not
limited to the designation of sources from which Lessee may obtain sign painting
and lettering;  any restriction,  designation,  limitation or control imposed by
reason of this  subparagraph  shall be  imposed  uniformly  on Lessee  and other
tenants occupying space in the Project; (c) to retain at all times and to use in
appropriate  instances keys to all doors within and into the Premises;  no locks
shall be changed  without the prior written  consent of Lessor;  this  provision
shall not apply to Lessee's  safes or other areas  maintained  by Lessee for the
safety and security of monies, securities, negotiable instruments or like items;
(d) to make  repairs,  improvements,  alterations,  additions or  installations,
whether structural or otherwise,  in and about the Project, or any part thereof,
and for such purposes to enter upon the Premises, and during the continuation of
any of said work,  to  temporarily  close doors,  entryways,  public  spaces and
corridors in the Project and to interrupt or  temporarily  suspend  services and
facilities;  and (e) to approve  the size and  location of safes and other heavy
equipment  and articles in and about the Premises and the Project and to require
all such items to be moved into and out of the Project and the Premises  only at
such times and in such manner as Lessor shall direct in writing.

28. NOTICES.

28.1 Any notice  required or  permitted to be given or served by either party to
this Lease  Agreement  shall be deemed to have been given or served when made in
writing, by certified or registered mail, addressed as follows:

LESSOR:   Fairmont Commerce Center, LLC
          525 Broadway Suite 203
          Santa Monica, CA 90401

LESSEE:   Sitek, Incorporated
          Attn: Chief Financial Officer
          1919 West Fairmont Suite 2
          Tempe, Arizona

28.2 All  rental  payments  shall be made to Lessor at the  above  address.  The
addresses may be changed from time to time by either party by serving  notice as
above  provided.  All notices  shall be  effective if mailed as aforesaid on the
second  business day  following  deposit in the mail,  or otherwise  upon actual
receipt by the recipient.

29. DELAYS; DEFAULT BY LESSOR.

29.1 Lessor shall not be responsible  for any delay or failure in the observance
or performance  of any term or condition of this Lease  Agreement to be observed
or  performed  by Lessor to the extent  that such delay  results  from action or
order of governmental  authorities civil commotion,  strikes, fires, acts of God
or the public enemy act or default of any tenant in the Project,  the  inability
to procure labor, material,  fuel, electricity,  or other forms of energy or any
other cause beyond the reasonable  control of Lessor,  whether or not similar to
the matters herein specifically enumerated.  Any delay shall extend by like time
any  period  of  performance  by  Lessor  and shall not be deemed a breach of or
failure to perform this Lease Agreement or any provisions hereof.

                                                                              11
<PAGE>
29.2 In the event of any default under this Lease  Agreement by Lessor,  Lessee,
before  exercising  any  rights  that it may have at law to  cancel  this  Lease
Agreement,  shall have given written  notice of such default to Lessor and shall
have offered  Lessor a reasonable  opportunity  to correct and cure the default.
Lessee  also  agrees  to give the  holders  of any  mortgages  or deeds of trust
("mortgagees")  by registered  mail, a copy of any notice of default served upon
Lessor,  provided  that prior to such notice Lessee has been notified in writing
(by way of Notice  of  Assignment  of Rents and  Leases,  or  otherwise)  of the
addresses of such  mortgagees.  Lessee  further agrees that if Lessor shall have
failed to cure such default within the aforesaid time limit, then the mortgagees
shall have an  additional  twenty (20) days within which to cure such default or
if such default cannot be cured within that time,  then such  additional time as
may be  necessary,  if within such twenty (20) days any  mortgagee has commenced
and  is  diligently  pursuing  the  remedies  necessary  to  cure  such  default
(including  but not  limited  to  commencement  of  foreclosure  proceedings  if
necessary to effect such cure) in which event this Lease  Agreement shall not be
terminated while such remedies are being so diligently pursued.

30. PARKING.

30.1 Lessee also acknowledges  that there are unreserved  surface parking spaces
in an uncovered parking area adjoining the building.  Lessee and visitors of the
Project may park in such spaces without charge on a non-exclusive basis.

33.2  Lessee's  use of all  parking  areas  shall be  subject  to any  rules and
regulations relating thereto included from time to time in the Project Rules and
Regulations, including regulations governing the designation of specific parking
spaces for use by the Lessee and its guests and invites,  the hours during which
such  parking  spaces  may be used,  the size of such  parking  spaces,  and the
traffic  flow in the parking  areas.  Lessor  shall not be  responsible  for any
vandalism or other  damages from any cause  occurring  to  automobiles  or their
contents while located in such parking spaces or moving in the parking area.

31. NO WAIVER.

Any waiver by any of the parties  hereto of any breach of this Lease  Agreement,
or of any right of any party,  must be in  writing,  and in any event  shall not
constitute a waiver of any other breach or of any other right.

32. ENTIRE AGREEMENT.

This Lease Agreement  contains the entire  agreement  between the parties hereto
and no term or provision hereof may be changed, waived, discharged or terminated
unless the same be in writing executed by both parties hereto.

33. APPLICABLE LAW.

The laws of Arizona shall govern the  construction,  performance and enforcement
of this Lease Agreement.

34. TIME OF ESSENCE.

Time shall be of the  essence in the  performance  of every term,  covenant  and
condition of this Lease Agreement.

                                                                              12
<PAGE>
35. HEADINGS.

The paragraph  headings  contained  herein are inserted only for  convenience of
reference and are in no way to be construed as a part of this Lease Agreement or
as a limitation on the scope of the particular paragraphs to which they refer.

36. BENEFITS.

Subject to paragraph 18 hereof,  this Lease Agreement shall inure to the benefit
of and be binding upon the parties hereto and their respective heirs, executors,
administrators, legal representatives, successors and assigns.

37. SEVERABILITY.

If any term or  provision  of this Lease  Agreement  shall,  to any  extent,  be
determined by a court of competent  jurisdiction to be invalid or unenforceable,
the remainder of this Lease  Agreement shall not be affected  thereby,  and each
other  term  and  provision  of this  Lease  Agreement  shall  be  valid  and be
enforceable to the fullest extend permitted by law.

38. ABANDONMENT.

Lessee shall not vacate or abandon  Premises at any time during the term of this
Lease  Agreement,  nor permit the  Premises  to remain  unoccupied  for a period
longer  than  fifteen  (15)  consecutive  days  during  the  term of this  Lease
Agreement;  and if Lessee shall abandon, vacate or surrender the Premises, or be
dispossessed by process of law, or otherwise, any personal property belonging to
Lessee and left on the Premises shall be deemed abandoned.

39. LESSEE AUTHORITY.

Lessee  shall   furnish  to  Lessor  a  corporate   resolution,   proof  of  due
authorization  of  partners,  or  other  appropriate   documentation  reasonably
requested by Lessor  evidencing  the due  authorization  of Lessee to enter into
this Lease Agreement.

                                                                              13
<PAGE>
40. ADDITIONAL TERMS AND CONDITIONS.

Additional terms and conditions which apply to this Lease Agreement, if any, are
set forth on Exhibit "D" which is  attached  hereto and  incorporated  herein by
this  reference.  The attached  Exhibit "D" will be  effective  when the same is
signed by both parties hereto.

IN WITNESS WHEREOF, the parties have executed this Lease Agreement as of the day
and year first above written.

LESSOR: Fairmont Commerce Center, LLC    LESSEE: Sitek, Incorporated

-----------------------------------      ---------------------------------------
By: DMC Investment Co, LLC, Manager      By: Gloria Zemla, Chief Financial
    Avrom Green, Manager                     Officer, Vice President and
                                             Treasurer

                                                                              14
<PAGE>
                                   EXHIBIT "A"

                                  THE PREMISES

                      [FAIRMONT COMMERCE CENTER FLOORPLAN]

                                                                              15
<PAGE>
                                   EXHIBIT "B"

        OUTLINE SPECIFICATIONS FOR IMPROVEMENTS TO BE PAID FOR BY LESSOR

See the provisions in Exhibit "D" of this lease.

--------------------------              --------------------------
Lessor's Initials                       Lessee's Initials

                                                                              16
<PAGE>
                                   EXHIBIT "C"

                          PROJECT RULES AND REGULATIONS

1. Any sign, lettering,  picture, notice or advertisement installed on or in any
part of the leased  premises and visible  from the  exterior of the Project,  or
visible from the exterior of the  Premises,  shall be installed at Lessee's sole
cost and expense, and in such manner,  character and style as Lessor may approve
in writing which approval shall not be unreasonably  withheld. In the event of a
violation  of the  foregoing  by Lessee,  Lessor may remove the same without any
liability and may charge the expense incurred by such removal to Lessee.

2. No awning or other  projection  shall be attached to the outside walls of the
Project. No curtains, blinds, shades or screens visible from the exterior of the
Project or visible  from the exterior of the  Premises,  shall be attached to or
hung in, or used in connection  with any window or door of the Premises  without
the prior written consent of Lessor. Such curtains,  blinds,  shades, screens or
other fixtures must be of a quality,  type,  design and color, and attached in a
manner approved by Lessor.

3. Lessee,  its servants,  employees,  customers,  invitees and guests shall not
obstruct sidewalks,  entrances,  passages, corridors,  vestibules, halls, in and
about  the  Project  which  are used in  common  with  other  tenants  and their
servants, employees, customers, guests and invitees, and which are not a part of
the Premises of Lessee.  Lessee shall not place objects against glass partitions
or doors or windows  which would be unsightly  from the exterior of the Project,
and will promptly remove any such objects upon notice from Lessor.

4. Lessee shall not make excessive noises,  cause  disturbances or vibrations or
use or operate any electrical or mechanical devices that emit excessive sound or
other  waves or  disturbances  or  create  obnoxious  odors  any of which may be
offensive  to the other  tenants and  occupants  of the  Project,  or that would
interfere  with  the  operation  of any  device,  equipment,  radio,  television
broadcasting  or reception from or within the Project or elsewhere and shall not
place or install any projections, antennas, aerials or similar devices inside or
outside of the Premises or on the Project.

5.  Lessee  shall not waste  electricity,  water or air  conditioning  and shall
cooperate  fully  with  Lessor it insure  the most  efficient  operation  of the
Project's heating and air conditioning systems.

6. Lessee  assumes  full  responsibility  for  protecting  its space from theft,
robbery and pilferage,  which  includes  keeping doors locked and other means of
entry to the Premises closed and secured after normal business hours.

7. Lessee shall comply with all applicable  federal,  state and municipal  laws,
ordinances  and  regulations,  and  Project  Rules  and shall  not  directly  or
indirectly  make any use of the Premises  which may be  prohibited by any of the
foregoing  or which may be  dangerous to persons or property or may increase the
cost of insurance or require additional insurance coverage.

8. Lessor  shall have the right to prohibit any  advertising  by Lessee which in
Lessor's  reasonable  opinion tends to impair the reputation or character of the
Project,  and upon  written  notice from Lessor,  Lessee  shall  refrain from or
discontinue such advertising.

9. The  Premises  shall not be used for cooking (as opposed to heating of food),
lodging, sleeping or for any immoral or illegal purpose.

10. Any carpeting  cemented down by Lessee shall be installed  with a releasable
adhesive.  In the event of a violation of the  foregoing  by Lessee,  Lessor may
charge the expense incurred by such removal to Lessee.

11. The water and wash closets,  drinking  fountains and other plumbing fixtures
shall  not be used  for any  purpose  other  than  those  for  which  they  were
constructed,  and  no  sweepings,   rubbish,  rags,  coffee  grounds,  or  other
substances shall be thrown therein. All damages resulting from any misuse of the
fixtures shall be borne by the Lessee who or whose servants,  employees, agents,
visitors,  or licensees,  shall have caused same. No person shall waste water by
interfering with the faucets or otherwise.

                                                                              17
<PAGE>
12. No  electric  circuit  for any purpose  shall be brought  into the  Premises
without Lessor's written  permission  specifying the manner in which same may be
done.

13. Based upon  reasonable  structural  /imitations in the Premises,  Lessee may
limit the weight,  size and position of all safes,  fixtures and other equipment
or machinery used in the Premises. In the event Lessee shall require extra heavy
equipment or machinery,  Lessee shall notify Lessor of such fact,  and shall pay
the cost of  structural  bracing to  accommodate  same.  All damage  done to the
Premises or Project by installing, removing or maintaining extra heavy equipment
or machinery shall be repaired at the expense of the Lessee.

14.  Canvassing,  soliciting  and peddling in the Project is prohibited and each
tenant of the Project shall cooperate to prevent the same.

15. Lessee shall not mark, drive nails, screw or drill into, paint or in any way
deface the exterior walls, roof,  foundations,  bearing walls or pillars without
the prior  written  consent of Lessor.  No boring or cutting  for wires shall be
allowed, except with the prior written consent of Lessor.

16. Lessee, its servants, employees,  customers, invitees and guests shall, when
using the common parking  facilities in and around the Project  observe and obey
all signs  regarding  fire lanes and no parking  zones,  and when parking always
park between the designated lines. Lessor reserves the right to tow away, at the
expense of the owner, any vehicles which in improperly  parked or parked in a no
parking zone.  All vehicles  shall be parked at the sole risk of the owner,  and
Lessor  assumes  no  responsibility  for any damage to or loss of  vehicles.  No
vehicles shall be parked overnight.

17. Wherever in these Project Rules and Regulations the word "Lessee" occurs, it
is understood and agreed that it shall mean Lessee's associates, agents, clerks,
servants and visitors.  Wherever the word "Lessor" occurs,  it is understood and
agreed  that it shall mean  Lessor's  assigns,  agents,  clerks,  servants,  and
visitors.

18.  Lessor  reserves the right at any time to change or rescind any one or more
of these rules and regulations as in Lessor's judgment may from time to time may
be necessary for the  management,  safety,  care and cleanliness of the Project.
Lessor  shall  not be  responsible  to Lessee  or to any  other  person  for the
non-observance  or violation of these rules and  regulations by any other Lessee
or other person.

                                                                              18
<PAGE>
                                   EXHIBIT "D"

           CONSTRUCTION PROVISIONS FOR LESSEE IMPROVEMENTS TO PREMISES

1. SCOPE OF WORK.  These  provisions  define the scope of work to be provided by
Lessor  and  Lessee in the  Premises  under the  terms of the  Lease.  Words and
phrases  used herein  which are defined in the Lease have the meanings set forth
therein unless provided otherwise.

2. INTENT OF EXHIBIT.  It is the intent of these provisions that Lessee shall be
permitted freedom in the interior design and layout of its space so long as same
is consistent  with Lessor's  policies and structural  requirements,  applicable
building codes, and with sound  architectural  and construction  practices.  Any
additional  cost of design,  construction,  operation,  insurance,  maintenance,
taxes, fees or utilities which results there from shall be charged to Lessee and
paid for by Lessee in accordance with the provisions hereof and of the Lease.

3. LESSOR'S ALLOWANCE.  Lessor hereby grants Lessee a construction allowance not
to exceed One Hundred Thousand Dollars  ($100,000)  ("Construction  Allowance"),
which shall be used only as a credit towards the cost of  improvements to Suites
4, 5 and 6 of the Premises.

4. LESSEE'S COSTS.  All costs incurred in excess of the foregoing  allowance for
improvements,  services or  materials  required by Lessee in or for the Premises
shall be for the account of Lessee and at Lessee's sole cost and expense.

5. SPACE PLAN.  Lessee  shall  prepare a space  layout and working  drawings and
specifications  for all construction work in the Premises.  Interior design, and
details and specifications for improvements,  shall be for the account of Lessee
and shall be paid by Lessee upon invoice therefor. Lessee shall develop complete
working   drawings  and   specifications   (the  "Plans")  for  construction  of
improvements in the Premises, showing thereon partitions,  doors, electrical and
telephone outlets, light fixture locations,  wall finishes,  floor coverings and
special  requirements  (if any) for  Lessor's  review and  approval.  Failure of
Lessor to approve the Plans within the time limit  specified in Section 7 hereof
shall be deemed approval.

6. COST ESTIMATE AND PAYMENTS.

     6.1 COST ESTIMATES.  As soon as practicable  after Lessor's approval of the
Plans,   Lessee  will  advise  Lessor  of  the  total  estimated  cost  for  the
improvements (including  architectural and engineering,  administrative fees and
preinstalled  work)  together with  supporting  evidence as Lessor shall require
from  Lessee  (e.g.,  the  contractor  bid).  Lessor  will  have  no  obligation
whatsoever to make any disbursement from the Construction Allowance until Lessee
has complied with the provisions of this Section 6.1.

     6.2 PAYMENTS.  During the course of construction  of the  Improvement  Work
(defined  below),  Lessor  shall  make  progress  payments  to  Lessee  from the
Construction  Allowance less a fifty percent (50%) retainage.  Progress payments
shall be made within ten (10) days after receipt by Lessor of the following: (i)
a draw request;  (ii) substantiation of the construction costs to be paid; (iii)
a statement as to the percentage of work completed; and (iv) conditional partial
lien releases on account of the work completed.  Upon completion of construction
of the Improvement Work, Lessor shall pay to Lessee the final installment of the
Construction  Allowance (including the retainage),  provided Lessee has supplied
the following items to Lessor:  (i) The "Certificate of Occupancy";  (ii) A copy
of Lessee's  recorded "Notice of Completion";  (iii) A copy of all TI Contractor
(as hereinafter defined) paid invoices totaling or in excess of the Construction
Allowance; (iv) copy of all construction lien releases or other lien releases on
account of such  construction  work,  including an affidavit  from TI Contractor
that no liens  exist;  (v) A copy of all  building  permits  with all  sign-offs
executed;  (vi) An architect's  certification that the Premises were constructed
per plans and  specifications  and are one hundred  percent  (100%)  complete in
accordance  with this  EXHIBIT  "D";  (vii) Any and all  insurance  certificates
required under the Lease;  (viii) One (1) set of "as built"  drawings;  and (ix)
Copies of all manufacturer's warranties, owner's manuals, etc., for equipment or
materials installed by TI Contractor and a warranty statement,  naming Lessor as
the beneficiary of such warranty,  from the general contractor  guaranteeing all
improvements  for at least one (1) year from the date of substantial  completion
of the Premises.

                                                                              19
<PAGE>
7. TIME LIMITS.  The  following  maximum  time periods  shall be allowed for the
indicated  matters:  (i) Lessor approves (or disapproves  with  explanation) the
working  drawings  - 5 business  days;  Lessor  approves  (or  disapproves  with
explanation) the TI Contractor - 5 business days. In the event that Lessor fails
to provide its  approval in the time frames  required in (i) or (ii) above,  and
does not provide written  notification of its reason for any disapproval  (which
disapproval  must be  reasonable),  such item is hereby deemed to be approved by
Lessor.  Lessee  may  commence  with  that  portion  of  the  work  that  is not
disapproved.

8.  CONSTRUCTION  BY TI  CONTRACTOR.  All  construction  work  in  the  Premises
(sometimes  referred to herein as "Improvement  Work") shall be performed by the
tenant  improvement  contractor  ("TI  Contractor")  retained by Lessee.  The TI
Contractor  shall perform such work in a good and  workmanlike  manner and shall
construct the Improvement  Work  substantially in accordance with the Plans. All
Improvement Work shall be performed in accordance with all laws,  ordinances and
requirements of government agencies having jurisdiction  therefor. The following
conditions shall apply to Lessee's selection and use of the TI Contractor:

     8.1  CONTRACTOR  SELECTION.  Subject to the provisions of this EXHIBIT "D",
Lessee may select any  contractor  for the  construction  of  Improvement  Work,
provided such contractor is bondable and has received the prior written approval
of Lessor. Within five (5) days after the receipt by Lessor of a written request
by Lessee to approve a contractor,  Lessor shall either approve or disapprove of
such  contractor.  In the event  Lessor  fails to  approve  or  disapprove  of a
contractor  within such five (5) day  period,  such  contractor  shall be deemed
approved.

     8.2 INDEMNITY. Lessee hereby indemnifies and holds Lessor harmless from and
against  any and all costs  arising out of or in  connection  with damage to the
Project caused by Lessee's contractors.

     8.3 SPECIAL  CONDITIONS.  Lessee agrees that the provisions set forth below
shall be incorporated as "Special  Conditions"  into the contract between Lessee
and TI  Contractor  for  the  benefit  of  Lessor,  and  agrees  that as to such
provisions,  Lessor  shall  have the  rights  of  enforcement  of a third  party
beneficiary  (with a copy of the  contract to be  furnished  Lessor prior to the
commencement of the Improvement Work):

          8.3.1 Prior to starting any of the  Improvement  Work,  TI  Contractor
shall also  deliver to Lessor  duplicate  originals  of  insurance  policies (or
certificates of insurance if such certificates shall, in Lessor's sole judgment,
provide clear and  unambiguous  evidence of insurance).  The insurance  provided
Lessor by TI  Contractor  pursuant  to this  paragraph  8.3.1  shall be  primary
insurance without the right of contribution from any insurance maintained by the
Lessor and shall name  Lessor and  Lessor's  agent as  additional  insured.  The
insurance  required  shall be written for not less than the  following  (or such
amount required by law, if the same is greater than the following):

               8.3.1.1 WORKER'S COMPENSATION:

                    (a)  State Statutory Requirements
                    (b)  Applicable Federal Statutory Requirements
                    (c)  Employer's Liability $1,000,000

               8.3.1.2    COMPREHENSIVE     GENERAL    LIABILITY:     (including
               Premises-Operations;    Independent    Contractor's   Protective;
               Products and Completed Operations; Broad Form Property Damage:

                    (a)  Combined  Single  Limits for Bodily Injury and Property
                         Damage: $1,000,000 Each Occurrence.
                    (b)  Products and Completed Operations to be maintained:
                    (c)  Property Damage Liability Insurance shall provide X, C,
                         or U coverage.

               8.3.1.3 CONTRACTUAL LIABILITY:

                    (a)  Combined  Single  Limits for Bodily Injury and Property
                         Damage: $1,000,000 Each Occurrence.

               8.3.1.4  PERSONAL  INJURY,  WITH  EMPLOYMENT  EXCLUSION  DELETED:
               1,000,000 Annual Aggregate.

                                                                              20
<PAGE>
               8.3.1.5 COMPREHENSIVE AUTOMOBILE LIABILITY:

                    (a)  Combined  Single  Limits for Bodily Injury and Property
                         Damage: $1,000,000 Each Occurrence.

               8.3.1.6 UMBRELLA EXCESS LIABILITY: $3,000,000

          8.3.2 TI Contractor  shall be responsible for, and shall pay the cost,
the  repair,  replacement  or  clean-up  of  any  damage  done  by it  to  other
contractors' work, which specifically includes access ways to the Premises which
may be concurrently used by others.

          8.3.3  Under no  circumstances  shall TI  Contractor  cause or  permit
anything  to be hung from or  supported  by any duct  work or  piping  above the
Premises.  All suspended  ceilings and other fixtures and improvements  shall be
installed in a proper manner and in accordance with applicable building codes.

          8.3.4 TI Contractor shall contain the storage of its materials and its
operations  within the  Premises  and such  other  space,  if any,  as he may be
assigned  by Lessor.  Should TI  Contractor  be  assigned  space  outside of the
Premises,  he shall move to such other space as Lessor shall direct from time to
time to avoid  interference  or  delays  with  other  work.  In no  event  shall
materials  be stored in corridors  in the Common  Area.  No flammable  materials
shall be stored or kept in the Premises or anywhere else in the Project,  except
that which is to be used during the single day of construction that it is there.

          8.3.5 All trash and  surplus  construction  materials  shall be stored
within  the  Premises  and  shall  be  promptly  removed  from the  Project.  TI
Contractor  shall confirm with Lessor on the placement of any trash bin prior to
placing the same on site.

          8.3.6 At Lessor's  option,  Lessor may provide trash removal  services
for TI Contractor  (who shall  purchase such services by use of Lessor's form of
Lessee work order),  and Lessee shall cause the cost thereof to be reimbursed to
Lessor  within ten (10) days after  demand.  Failure by Lessee to cause any such
payment  to be made  shall be  deemed a  default  under  the Lease the same as a
failure to pay Rent.

          8.3.7 TI Contractor  shall provide  Lessor prior written notice of any
planned  work to be done on weekends  or during  other than normal job hours for
the purpose of obtaining  Lessor's  consent  thereto.  TI Contractor  shall also
refrain during normal  building  hours,  as such hours are determined by Lessor,
from proceeding with construction that impacts,  or may create an annoyance for,
any tenant or any tenant's use of its  premises,  for example,  work that causes
excessive  noise (such as floor  coring) or creates fumes or odors (such as wall
covering preparation, painting, millwork and door or wood finishing).

          8.3.8 Lessee and TI Contractor are responsible for compliance with all
applicable  codes  and  regulations  of  duly  constituted   authorities  having
jurisdiction  insofar as the performance of the work and completed  improvements
are concerned for all work  performed by Lessee or TI  Contractor,  and with all
applicable  safety  regulations  established  by the general  contractor for the
Project. Lessee further agrees to save and hold Lessor harmless for said work as
provided in the Lease.

          8.3.9 Neither TI Contractor nor the subcontractors shall post signs on
any part of the Project or on the Premises.

          8.3.10 TI Contractor  shall agree that the contract between Lessee and
TI Contractor is solely for the benefit of Lessee and TI Contractor,  except for
the provisions referred to above as being for the benefit of Lessor (as to which
provisions  Lessor  shall  have  the  rights  of  enforcement  of a third  party
beneficiary).  TI Contractor shall further agree that it and its  subcontractors
shall look only to Lessee for  payment of any sums due under its  contract  with
Lessee. TI Contractor,  for itself and its  subcontractors,  shall waive any and
all claims or actions  (including  mechanics' or materialmen's lien rights) that
it or its  subcontractors may have against Lessor for amounts owing to it or its
subcontractors under the contract between TI Contractor and Lessee.

     8.4 ELECTRICAL  POWER. Upon written notice from TI Contractor that it needs
temporary  electrical  power,  Lessor  shall make same  available.  Lessee shall
reimburse  Lessor for the cost  thereof,  together  with a charge  for  Lessor's
direct and indirect  administrative costs related thereto,  within ten (10) days
after the demand.  Failure by Lessee to make any such payment  shall be deemed a

                                                                              21
<PAGE>
default under the Lease the same as a failure to pay Rent.  Unless TI Contractor
shall notify Lessor in writing that such temporary  power is no longer needed by
it,  Lessor  may  continue  to make such  temporary  power  available  until the
Premises shall open for business,  and Lessee shall pay Lessor therefor as above
provided.

     8.5 NOTICE OF COMPLETION  AND LIENS.  Lessee shall be  responsible  for and
shall (a) obtain and record a Notice of Completion promptly following completion
of Lessee's  Work and  promptly  forward a copy to Lessor,  (b) post a Notice of
Completion  on the Premises and  promptly  forward a copy to Lessor,  (c) obtain
executed  lien waiver for all work  performed by TI  Contractor  and an executed
affidavit  from TI  Contractor  that no  liens  exist,  and  shall  provide  the
originals  thereof  to  Lessor  promptly  upon  substantial  completion  of  the
Improvement  Work,  (d) obtain a  Certificate  of Occupancy for the Premises and
provide Lessor with a duplicate  original  thereof  promptly  after  substantial
completion of the Improvement  Work, (e) obtain from TI Contractor a copy of the
contract with TI Contractor and a list of all components of  construction in the
Premises,  broken  down into items and the cost of each item,  and  provide  the
original  thereof  to  Lessor  promptly  upon  substantial   completion  of  the
Improvement  Work,  (f) provide  Lessor with one (1) set of "as -built  drawings
within  thick-j (3% days  following  substantial  completion of the  Improvement
Work,  (g) obtain a copy of all  building  permits with  sign-offs  executed and
provide  copies  thereof to Lessor  promptly upon  substantial  completion,  (h)
obtain an architect's certification that the Improvement Work was constructed in
accordance with this EXHIBIT "D", and (i) obtain and deliver to Lessor copies of
any owner's  manuals for any  equipment  or other  improvements.  The failure of
Lessee to  provide  to Lessor  with any one (1) or more of the  foregoing  items
within  thirty (30) days after  request  therefor by Lessor,  shall be a default
under the Lease.

     8.6  WARRANTIES.  Lessee shall assign any and all warranties and guaranties
provided  by  TI  Contractor  and  subcontractors  to  Lessor  immediately  upon
completion  of  Improvement  Work.  All  improvements  shall  be  guaranteed  or
warrantied for a period of at least one (1) year.

     8.7   RESPONSIBILITY   FOR  LESSEE'S   MATERIALS.   All  materials,   work,
installations and decorations of any nature  whatsoever  brought on or installed
in the  Premises  before the  commencement  of the term of the Lease shall be at
Lessee's risk, and neither Lessor nor any party acting on Lessor's  behalf shall
be responsible for any damage thereto or loss or destruction thereof.

9. LESSEE COORDINATOR. Lessor has designated a "Lessee Coordinator" who shall be
responsible  for the management and  coordination of all work to be performed in
the  Premises  and  coordination  with  Lessee on all  matters  governed  by the
provisions contained in this EXHIBIT "D". Lessee Coordinator will furnish Lessee
with notices of  substantial  completion,  Lessor's  approval or  disapproval of
Plans and changes thereto,  and other similar notices.  Lessee shall deliver any
payments  that may be  required  hereunder  to be paid to Lessor  to the  Lessee
Coordinator unless written notice is given by Lessor to the contrary.

10. CHANGES. If Lessee requests or necessitates any change, addition or deletion
to the Premises after approval of the Plans,  as described in Section 7 above, a
request for the change shall be submitted to the Lessee coordinator  accompanied
by revised plans prepared by Lessor's space planner at Lessee's sole expense.

11. INCORPORATION BY REFERENCE. This EXHIBIT "D" is and shall be incorporated by
reference  in the Lease,  and all of the terms and  provisions  of the Lease are
incorporated herein by this reference.

12.  ATTORNEYS'  FEES. In the event of any action or  proceeding  initiated by a
party hereto for the enforcement or interpretation  of the provisions  contained
herein,  the prevailing party shall be entitled to recover its costs incurred in
connection therewith, including its reasonable attorneys' fees.

AGREED:

LESSOR: Fairmont Commerce Center, LLC    LESSEE: Sitek, Incorporated

-----------------------------------      ---------------------------------------
By: DMC Investment Co, LLC, Manager      By: Gloria Zemla, Chief Financial
    Avrom Green, Manager                     Officer, Vice President and
                                             Treasurer

                                                                              22
<PAGE>
                                   EXHIBIT "E"

                   ADDENDUM RELATING TO THE EXTENSION OF TERMS

This  ADDENDUM  (the  "Addendum")  is entered into this December 9, 1999 between
Fairmont Commerce Center, L.L.C. ("Lessor") and Sitek,  Incorporated ("Lessee"),
and modifies and supplements that certain  Commercial Lease (as it may have been
amended, the "Lease") between Lessor and Lessee dated January 20, 2000.

1.  Lessee  shall  have one  option to extend the term of the Lease by 36 months
(the "Extension  Term"),  commencing on the day following the expiration date of
the original  term of the Lease or the first option,  by giving  Lessor  written
notice, at least four (4) months prior to the expiration of the original term of
the Lease or the  first  option,  of  Lessee's  election  to  extend;  provided,
however,  that  the  option  granted  herein  shall  automatically  and  forever
terminate if not exercised by written  notice in a timely manner or if Lessee is
in breach of the Lease at the time the  notice of  extension  is given or at the
time of the expiration date of the original term of the Lease.

2. The amount of the monthly  installments of rent due during the Extension Term
shall  be the  greater  of:  (a)  the  monthly  rental  installments  in  effect
immediately  prior to the expiration  date of the original term of the Lease, or
(b) the then current market rental rate (under prevailing market conditions) for
similar space in the Building as reasonably  determined by Lessor. Lessor shall,
upon Lessee's  request  within the one- month period  preceding the deadline for
the giving of Lessee's  notice (or otherwise at such time as Lessee  delivers to
Lessor  Lessee's  written notice of election),  make a reasonable  determination
with respect to the market  rental rate that would be  applicable  to the Leased
Premises during the Extension Term.

3. Upon the  termination  of the Lease,  abandonment  of the Leased  Premises or
termination of Lessee's right to possession of the Leased Premises, Lessee shall
not thereafter be entitled to exercise its option to extend under this Addendum.

4. Except as  specifically  modified by this Addendum,  all of the provisions of
the  Lease  (and any  other  addendum  or  amendment  thereto  not  inconsistent
herewith) shall remain in full force and effect.

IN WITNESS WHEREOF,  the parties have executed this Lease as of the day and year
first above written.

LESSOR: Fairmont Commerce Center, LLC    LESSEE: Sitek, Incorporated

-----------------------------------      ---------------------------------------
By: DMC Investment Co, LLC, Manager      By: Gloria Zemla, Chief Financial
    Avrom Green, Manager                     Officer, Vice President and
                                             Treasurer

                                                                              23CERTIFICATE OF DESIGNATION OF
                    TERMS OF FIRST SERIES A PREFERENCE STOCK

     DIMENSIONAL  VISIONS  GROUP,  LTD.  (the  "Corporation"  or  "Company"),  a
Delaware corporation, pursuant to Section 151 (g) of the General Corporation Law
of the State of Delaware, as amended, hereby certifies that:

     1.   The Board of  Directors  of the  Corporation,  pursuant  to  authority
          expressly  vested in it by the  provisions of the  Company's  Restated
          Certificate of  Incorporation,  duly adopted the following  resolution
          creating the first series of the Preference  Stock of the  Corporation
          to consist  initially  of 100,000  share and fixing the  designations,
          preferences  and  rights,  and  the  qualifications,  limitations  and
          restrictions  thereof,  of the shares of such series at a meeting duly
          held on October 21, 1992:
               RESOLVED,  that  pursuant to authority  expressly  granted to the
          Board of Directors by the provisions of this Corporations' Certificate
          of  Incorporation,  the Board of  Directors  hereby  creates the first
          series of the Preference Stock of the Corporation to consist initially
          of 100,000 shares ("First Series") and hereby fixes the  designations,
          preferences   and  rights,   and   qualifications,   limitations   and
          restrictions thereof, of the shares of such series (in addition to the
          designations,   preferences   and  rights,   and  the   qualification,
          limitations and restrictions  thereof, set forth in the Certificate of
          Incorporation  which are applicable to this  Corporation's  Preference
          Stock of all series) as follows:

          i.   DESIGNATION  OF SERIES.  The First Series shall be  designated by
               the Series A Convertible Preference Stock.
          ii.  NUMBER OF SHARES.  The number of shares of the First Series shall
               be 100,000,  which  number from time to time may be  increased or
               decreased  (but not below the number of shares in the series then
               outstanding)  by  resolution  of the  Board of  Directors  of the
               Corporation.
          iii. DIVIDENDS The dividend rate of the First Series shall be $.50 per
               share per annum in cash, and no more, which shall be payable from
               funds legally  available foe that purpose  annually on June 30 of
               each year,  commencing  on June 30, 1992.  Dividends on shares of
               the First Series shall cumulate from the date of their  purchase,
               but accruals of the  dividends  will not bear  interest.  If such
               dividends for any quarterly period are not paid in full,  holders
               of shares of the First Series shall participate ratable, with the
               holders of all shares of Preference  Stock  (excluding the shares
               of such series thereof,  if any, which by their terms rank junior
               as to dividends to the shares of the First  Series),  in any cash
               dividends paid for such period, in proportion to the full amounts
               of dividends for such period to which they are entitled,  and the
               Corporation shall not pay cash dividends to the holders of shares
               of Preference  Stock for any  subsequent  period or to holders of
               shares of  Preference  Stock of any series  which by their  terms
               rank  junior to the  shares of the  First  Series  until all such
               dividends accrued on shares of the First Series have been paid in
               full.
          iv.  REDEMPTION.  Share of the First Series shall be redeemable at the
               Corporation's  sole option in whole or in any part at any time or
               times after the fifth anniversary of the date of their issue, but
<PAGE>
               not  earlier,  at the price of $10 per share plus in each case an
               amount  equal to all  dividends  accumulated  but  unpaid on such
               shares to the date fixed for redemption  whether or not earned or
               declared (the "redemption  price").  Notice of every  redemption,
               stating the date fixed for redemption,  the redemption price, and
               the place of payment thereof, shall be given by mailing a copy of
               such notice no later than the  thirtieth day and not earlier than
               the  sixtieth day prior to the date fixed for  redemption  to the
               holders  of the  record  of the  shares to be  redeemed  at their
               addresses   as  the  same  shall  appear  on  the  books  of  the
               Corporation.  The  Corporation,  upon or after mailing  notice of
               redemption as aforesaid or upon or after irrevocably  authorizing
               the  bank  or  trust   company  in  the  city  of   Philadelphia,
               Pennsylvania,  or such other  place as may be  determined  by the
               Corporation's  Board  of  Directors,   an  amount  equal  to  the
               redemption price of the shares to be redeemed, which amount shall
               be  payable to the  holders  of such  shares  upon  surrender  of
               certificates  therefore on or after the redemption  date or prior
               thereto if so directed by the Board. Upon such deposit,  or if no
               such  deposit  is made then  from and  after  the date  fixed for
               redemption unless the Corporation shall default in making payment
               of  the  redemption  price  upon  surrender  of  certificates  as
               aforesaid,  the shares  called for  redemption  shall cease to be
               outstanding  and shall be deemed  to have  been  acquired  by the
               Corporation   and  the   holders   thereof   shall  cease  to  be
               stockholders  with  respect  to such  shares  and  shall  have no
               interest in or claim against the Corporation with respect to such
               shares other than the right to receive the redemption  price from
               such bank or trust company or from the Corporation, as may be the
               case, without interest thereon, upon surrender of certificates as
               aforesaid; provided that conversation rights of shares called for
               redemption  shall terminate at the close of business on the fifth
               day prior to the date fixed for  redemption  unless default shall
               be made on payment of the redemption price. In case any holder of
               shares of the First Series which have been called for  redemption
               shall not, within six years after the date of such deposit,  have
               claimed  the amount  deposited  with  respect  to the  redemption
               thereof, such bank, or trust company, upon demand, shall pay over
               to the Corporation  such unclaimed  amount and shall thereupon be
               relieved of all responsibility in respect thereof to such holder,
               and thereafter such holder shall look only to the Corporation for
               payment  thereof.  The  Corporation  shall  be  entitled  to  any
               interest that may be paid on funds so deposited.
          v.   NO  LIQUIDATION  PREFERENCE.  In  the  event  of a  voluntary  or
               involuntary  liquidation,   dissolution  or  winding  up  of  the
               Corporation,  holders of shares of the First Series shall have no
               liquidation  preference over holders of the Corporation's  Common
               Stock.  Holders of shares of the First Series  shall  participate
               ratably  with  holders of the  Corporation's  Common Stock in the
               distribution  of  assets  with  each  share of the  First  Series
               accounting  for forty  (40)  shares of the  Corporation's  Common
               Stock.  Neither the merger nor  consolidation  of the Corporation
               with or into any corporation,  nor any sale, transfer or lease of
<PAGE>
               all or  part of the  Corporation's  assets,  shall  be  deemed  a
               liquidation  of  the  Corporation  within  the  meaning  of  this
               paragraph (v).
          vi.  CONVERSION  RIGHTS.  Any holder of shares of the First Series may
               convert   any  or  all  of  such   shares  into  fully  paid  and
               non-assessable   shares  of  Common  Stock  of  the   Corporation
               (hereafter called "Common Stock") on the terms, at the times, and
               in the  manner  hereinafter  set  forth.

               a.   Shares of the First  Series may be converted at any time one
                    hundred and eighty  (180) days from the date the shares were
                    purchased  into shares of Common  Stock at the rate of forty
                    shares of Common  Stock for each share of the First  Series,
                    such rate  should be subject to  adjustment  as  hereinafter
                    provided,  except that as to any shares of such series which
                    are called for redemption  pursuant to paragraph (iv) hereof
                    the  right of  conversion  shall  terminate  at the close of
                    business  on the  fifth  day  prior  to the date  fixed  for
                    redemption  unless  default  shall be made in the payment of
                    the redemption price. Upon conversion no adjustment shall be
                    made for dividends  either on the shares being  converted or
                    on the Common Stock issued thereupon.
               b.   Any  holder  of shares of the  First  Series  who  elects to
                    convert them shall surrender the certificate therefor at the
                    principal  office of any Transfer  Agent, or the Corporation
                    as the  case  may be,  for  such  shares,  with  the form of
                    written notice endorsed on such  certificate of his election
                    to  convert  them   completed.   If   necessary   under  the
                    circumstances   such  certificate   shall  be  endorsed  for
                    transfer or accompanied by executed instruments of transfer,
                    together  with such other  transfer  papers as the  Transfer
                    Agent  may  reasonably  require.  The  Corporation  or  such
                    Transfer  Agent,  as the  case  may be,  may  require,  as a
                    condition to the exercise of the conversion  privilege,  the
                    payment of any  transfer  tax or other  governmental  charge
                    (but not any tax payable upon the issue of stock deliverable
                    upon such  conversion) that may be imposed upon any transfer
                    incidental or prior to the conversion,  or the submission of
                    proper  proof  that the same has been paid.  The  conversion
                    privilege  shall be deemed to have been  exercised,  and the
                    shares of Common Stock issuable upon such  conversion  shall
                    be deemed to have been  issued,  upon the date the  Transfer
                    Agent,  or the  Corporation as the case may be, receives for
                    conversion the certificate representing such shares with the
                    required terms for conversion  satisfied,  except that as to
                    any  shares  of  such  series  which  are   surrendered  for
                    conversion  on a date which is less than five  business days
                    preceding the date fixed for the determination of holders of
                    Common Stock  entitled to receive rights to subscribe for or
                    to purchase  shares of Common Stock or other  securities  of
                    the Corporation  convertible to Common Stock, the conversion
                    privilege  shall be  deemed to have  been  exercised  on the
                    business  day  next  succeeding  the  date  fixed  for  such
                    determination.  Each  person  entitled to receive the Common
                    Stock issuable upon such conversion shall from the same date
                    be treated as the record  holder of such Common  Stock,  and
                    the person who surrenders  such shares for conversion  shall
                    on that date cease to be treated as the record holder of the
                    shares surrendered.
               c.   The  Corporation  shall  not  issue in  connection  with the
                    conversion of share of the First Series  certificates  for a
                    fraction ok one share of Common  Stock,  but in lieu thereof
<PAGE>
                    shall pay to any  person  who would  otherwise  be  entitled
                    thereto an amount of case equal to such fraction  multiplied
                    by the Market Price of the Common Stock on the last business
                    day of the week  preceding the week in which the  conversion
                    privilege was deemed to have been exercised. As used herein,
                    "Market  Price" means the last  reported  sale price regular
                    way on such  day or,  in case no such  reported  sale  takes
                    place on such day,  the reported  closing bid price  regular
                    way, in either  case on the  principal  national  securities
                    exchange on which the Common Stock is then listed or, if not
                    listed on any national securities exchange,  the closing bid
                    price in the over-the-counter  market as reported by any New
                    York Stock  Exchange  member firm selected from time to time
                    by the Board of Directors  for that  purpose.
               d.   As  soon  as   practicable   after  the  effective  date  of
                    conversion   of  any  shares  of  the  First   Series,   the
                    Corporation  shall deliver to the person or persons entitled
                    thereto,  at the principal  office of the Transfer  Agent at
                    which   such   stock   was   surrendered   for   conversion,
                    certificates representing the shares of Common Stock and any
                    cash to which such  person or persons  shall be  entitled on
                    such conversion.
               e.   The conversion  rate set forth in  subparagraph  (a) of this
                    paragraph (vi) shall be subject to adjustment as follows:
                    1.   if the Corporation subdivides the outstanding shares of
                         its  Common  Stock  into a greater  number of shares or
                         combines  them into a smaller  number  of  shares,  the
                         conversion  rate in  effect  immediately  prior to such
                         subdivision  or  combination  shall be  proportionately
                         increased  or  decreased  effective  at the  opening of
                         business on the day  following  the day upon which such
                         subdivision or combination becomes effective;
                    2.   if the Corporation  fixes a record date for the purpose
                         of  determining  the holders of shares of Common Stock,
                         entitled to receive any dividend in Common  Stock,  the
                         conversion  rate in  effect  immediately  prior to such
                         record date shall be proportionally increased effective
                         at the opening of business on the day following  such a
                         record date,  provided  that if for any reason the plan
                         to  pay  such  dividend  in  Common  Stock  is  legally
                         abandoned  before payment,  that any adjustment made in
                         the  conversion  rate by reason of the  passage of such
                         record date shall be  cancelled as of the date the plan
                         is abandoned; and
                    3.   the  insurance  to all  holders of Common  Stock of the
                         corporation of rights to subscribe to Common Stock at a
                         price  lower  than  90% of the  Market  Price  (defined
                         above)  thereof as of the close of business on the last
                         business day of the week  preceding  such  insurance of
                         rights shall be deemed to  constitute  the payment of a
                         dividend in Common Stock (and the record date therefore
                         shall  be  deemed  to have  been  fixed  as the date of
                         insurance of such rights)of that number of shares which
                         is determined by dividing the Market Price per share as
<PAGE>
                         of such time into the difference  between (A) the total
                         Market  Price as of such  time of the  number of shares
                         purchasable  upon  exercise  of such rights and (B) the
                         total offering price of such shares.

               f.   In case of

                    1.   any  reclassification  or change of the Common Stock of
                         the Corporation other than a change in its par value, a
                         change from par value to no par value or case  provided
                         in subparagraph (c) of this paragraph (vi), or
                    2.   a merger of  consolidation  in which the Corporation is
                         not the continuing corporation,

                    provision  shall be made so that holders of the First Series
                    shall  thereafter  have the  right  to  convert  each  share
                    thereof into the kind and amount of shares or stock or other
                    securities    or    property     receivable     upon    such
                    reclassification, change merger or consolidation by a holder
                    of the  number  and kind of shares of  capital  stock of the
                    Corporation  into which such shares of the First Series were
                    convertible  immediately prior thereto. In any such case the
                    Board of Directors  shall  determine the manner in which the
                    adjustments   provided  for  in  subparagraph   (e)  of  the
                    paragraph (vi) shall thereafter be made.

               g.   Whenever the conversion rate is required to be adjusted:
                    1.   the Corporation shall file a certificate  setting forth
                         such adjusted  conversion rate and the facts upon which
                         the  adjustment  is based with the Transfer  Agents for
                         shares of the First Series and the Transfer  Agents for
                         the  Common  Stock  and   thereafter   (until   further
                         adjusted) the adjusted  conversion rate shall be as set
                         forth in such certificate; and
                    2.   the  Corporation  shall  mail  notice of such  adjusted
                         conversion  rate to each  holder of shares of the First
                         Series.

          vii. VOTING  RIGHTS.  Except as provided  below,  holders of the First
               Series  shall have the general  power to vote in the  election of
               directors and for all other purposes,  on the basis of forty (40)
               votes  per share of the First  Series.  Holders  of shares of the
               First  Series  shall  not have the  general  power to vote on any
               matters  on which they are  entitled  to vote as a series or as a
               part of the class of Preference Stock, regardless of series.

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