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                                                                   EXHIBIT 10.13

                                     - 1 -

                         AGREEMENT OF PURCHASE AND SALE

This agreement)(the "Agreement") dated as of the 20th day of June, 2003 between
NEGOTIART Inc. "In Trust" (the "Purchaser") and GSI LUMONICS INC. (the "Vendor")
provides for the purchase of the land and premises (the "Property") known as 105
Schneider Road, Ottawa (Kanata), Ontario, Canada as more particularly described
in Schedule "A" to this Agreement. For good and valuable consideration, the
receipt and adequacy of which are acknowledged, the Purchaser and Vendor agree
as follows:

1.       PURCHASE, PURCHASE PRICE AND CLOSING DATE. The Purchaser agrees to
purchase and the Vendor agrees to sell the Property on the terms and conditions
set out in this Agreement and for the purchase price (the "Purchase Price") of
THREE MILLION TWO HUNDRED THOUSAND CANADIAN DOLLARS (CDN $3,200,000.00) payable
as to TWENTY-FIVE THOUSAND CANADIAN DOLLARS (CDN $25,000.00) by cheque to be
delivered by the Purchaser no later than June 24,2003 paid to to the Vendor's
agent, namely Colliers Macaulay Nicolls (Ontario) Inc. "In Trust" to be held as
a deposit (the "Deposit"), and an amount of SEVEN HUNDRED SEVENTY-FIVE THOUSAND
CANADIAN DOLLARS (CDN $775,000), subject to adjustment, payable to the Vendor as
it may direct by cash or certified cheque on the completion of this Agreement.
This transaction will be completed on or before the 29th day of August, 2003
(the "Closing Date"). The balance of TWO MILLION FOUR HUNDRED THOUSAND CANADIAN
DOLLARS (CDN $2,400,000), shall be payable to the Vendor in accordance with the
mortgage terms contained in section 2 of this Agreement.

2.       MORTGAGE TERMS. Vendor agrees to provide to Purchaser, and Purchaser
accepts, a mortgage in the amount of TWO MILLION FOUR HUNDRED THOUSAND CANADIAN
DOLLARS (CDN $2,400,000) substantially in accordance with the terms and
conditions set forth in the mortgage attached as Schedule "B" hereto
("Mortgage") and the terms and conditions in this section 2. The Mortgage shall
be for a period of twenty-five (25) month from the Closing Date which shall be
August 29, 2003. The full amount of the Mortgage shall become due and payable
upon the expiration of the twenty-five (25) month period from the Closing Date
which shall be September 29, 2005. No capital payment of any kind is due from
Purchaser on the Mortgage prior to September 29,2005. The interest rate for the
Mortgage shall be 0% if paid on or before August 29, 2005 and the Purchaser
shall have the right to prepay the Mortgage without bonus or penalty anytime up
to and including August 29,2005. If Purchaser makes any such prepayment then
Vendor agrees to give Purchaser a discount rate on the pre-paid amount from the
date that such pre-payment is made, through September 29, 2005, the maturity
date of the Mortgage, at 2.5% annually.

If payment of the Mortgage is made (i) on or after August 30,2005 through
September 29, 2005 or (ii) during the cure period as contained in Schedule B if
Purchaser does not make the payment on September 29, 2005, interest would accrue
at the rate of 6% per anum on the unpaid balance.

3.       PARTIAL MORTGAGE RELEASE. For purposes of this Agreement the Purchase
Price for the Property shall be allocated as follows:

a. TWO MILLION EIGHT HUNDRED THOUSAND CANADIAN DOLLARS (CDN $2,800,000) for that
parcel as presently described on which the building is located ("Primary
Parcel").

b. FOUR HUNDRED THOUSAND CANADIAN DOLLARS (CDN $400,000) for the two parcels as
presently described on which no structures are located ("Secondary Parcels").

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                                      -2-

Subject to compliance with the Planning Act (Ontario) Vendor shall grant
Purchaser a partial mortgage release of the Secondary Parcels if Purchaser pays
to Vendor as it may direct by cash or certified cheque an amount of FOUR HUNDRED
THOUSAND CANADIAN DOLLARS (CDN $400,000) or Purchaser completes improvements on
the Primary Parcel in the amount of FOUR HUNDRED THOUSAND CANADIAN DOLLARS (CDN
$400,000) and can provide documentation Satisfactory to Vendor showing the
improvements made and their cost.

4.       CONDITIONS.

a.       Purchaser's Conditions. The Purchaser's obligation to carry out the
transactions contemplated by this Agreement is subject to the satisfaction or
waiver by the Purchaser of each of the following conditions by the date
specified, which conditions are for the sole benefit of the Purchaser and which
may be waived by the Purchaser in its sole discretion:

         i.       Due Diligence. This Agreement is conditional upon the
         Purchaser inspection and approval of the physical property by its
         agents, consultants or any other persons as the Purchaser deems
         necessary. The physical inspection shall include but not be limited to
         roof, mechanical, environmental, and structural space inspections, the
         examination of any legal restrictions, rights of way or easements which
         the Vendor is not obliged to discharge on or before the Closing Date,
         and the obtaining of reports satisfactory to the Purchaser at its own
         expense. The Vendor agrees to co-operate with the Purchaser in
         providing reasonable access to the Property for the purpose of this
         inspection and Purchaser agrees that Vendor will have the right to have
         one or more representatives of Vendor accompany Purchaser's
         representatives, agents or designees while they are on the Property.
         Unless the Purchaser gives notice in writing delivered to the Vendor
         not later than 5:00 P.M. Ottawa Time on the 22nd day of August 2003
         (the "Condition Date") that this condition is fulfilled, this Agreement
         shall be null and void and the deposit shall be returned to the
         Purchaser in full (without interest). This condition is included for
         the sole benefit of the Purchaser and may be waived at their option in
         writing to the Vendor within the time period stated herein. Any damage
         resulting from the Purchaser's tests or investigations will be promptly
         repaired at its sole expense.

         ii.      Closing Date. As of the Closing Date, the representations and
         warranties of the Vendor set out in this Agreement will be true and
         accurate and of the same effect as if made on and as of the Closing
         Date and all the terms, covenants and conditions of this Agreement to
         be complied with or performed by the Vendor on or prior to the Closing
         Date will have been complied with or performed.

         iii.     Purchaser's Board Approval. This Agreement is conditional upon
         the Purchaser obtaining final approval from the Board of Directors of
         Negotiart Inc. Unless the Purchaser gives notice in writing delivered
         to the Vendor not later than 5:00 P.M. Ottawa Time on the 25th day of
         June, 2003 that this condition is fulfilled, this Agreement shall be
         null and void and the deposit shall be retained by the Vendor in full
         together with accrued interest.

b.       Vendor's Board Approval. This Agreement is conditional upon the Vendor
obtaining final approval from the Board of Directors of GSI Lumonics Inc. Unless
the Vendor gives notice in writing delivered to the Purchaser not later than
5:00 P.M. Ottawa Time on the 25th day of June, 2003 that this condition is
fulfilled, this Agreement shall be null and void and the deposit shall be
returned to the Purchaser in full together with accrued interest.

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5.       VENDOR'S REPRESENTATIONS. The Vendor covenants, represents and warrants
to and in favour of the Purchaser that:

a.       ENVIRONMENTAL. To the best of the Vendor's knowledge and belief, the
Property has never been used at any time as a landfill or waste disposal site
and that the use and occupation of the Property and condition of the Property do
not contravene any law, by-law, order, ordinance, ruling, regulation, guideline,
policy, certificate, approval, consent or directive of any applicable federal,
provincial or municipal government, department, agency or authority or any court
relating to any environmental matters relating to the Property and the Property
does not contain any contaminant, pollutant, dangerous, noxious or toxic
substance, hazardous waste, flammable, explosive or radioactive material,
ureaformaldehyde foam insulation, asbestos, polychlorinated biphenyls or any
other substance or material ("Hazardous Substance") that may be detrimental to
the environment, including the air, soil, subsoil or surface or ground water at
the Property. The Vendor has not emitted, released, discharged or disposed or
deposited any Hazardous Substance at or near the Property and there are no
claims, actions, prosecutions, charges or any other proceedings, and the Vendor
has received no notice of any such proceedings, which relate to the
environmental status of the Property.

b.       Section 116. The Vendor is not now, and will on the Closing Date not
be, a non-resident of Canada within the meaning of Section 116 of the Income Tax
Act (Canada).

c.       Liabilities. There are no contracts, agreements or employees associated
with the Property in respect of which the Purchaser will incur any liability as
a result of becoming the owner of the Property.

d.       Charges and Levies. There are no local improvement charges, development
charges or special levies outstanding against the Property and there will be no
such charges or levies outstanding against the Property as of the Closing Date.

e.       Work Orders. If any work order, deficiency notice, notice of violation
or other communication from any governmental authority or other regulating
entity is received by the Vendor or the Purchaser on or prior to the Closing
Date, the Vendor will, at its expense, perform any required work or other
actions required pursuant to such communication on or prior to the Closing Date.

f.       No Litigation. There are no actions, suits or proceedings pending or,
to the knowledge of the Vendor, threatened against or affecting the Vendor, the
Property or the occupancy or use of the Property by the Vendor or by the Tenant,
in law or in equity, which could affect the validity of this Agreement or any
transaction provided for in this Agreement, the title to the Property or any
part of the Property, the conveyance of the Property to the Purchaser, the right
of the Purchaser from and after the Closing Date to own, occupy and obtain the
revenue from the Property or any action taken or to be taken in connection with
this Agreement.

g.       No Indebtedness Constituting a Lien. The Vendor will not on the Closing
Date have any indebtedness to any person that might by operation of law or
otherwise constitute a lien, charge or encumbrance on the Property or any part
of the Property or which could affect the right of the Purchaser, from and after
the Closing Date, to own occupy and obtain the revenue from the Property.

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                                      -4-

h.       Licenses, Approvals & Permits. All necessary licenses, approvals and
permits for the construction, occupancy and operation of the Property and for
its existing use have been obtained.

i.       Vacant Possession. The Property is not subject to any lease or
agreement to lease and the Purchaser shall have vacant possession of the
Property on the Closing Date.

6.       PURCHASER'S REPRESENTATIONS. the purchaser covenants, represents and
warrant to and in favour of the vendor that:

a.       Authority to Execute; Organization. Purchaser is validly organized and
in good standing under the laws of the province of its organization, and the
execution of this Agreement, delivery of money and all required documents,
Purchaser's performance of this Agreement and the transaction contemplated
hereby have been duly authorized by the requisite action on the part of the
Purchaser and Purchaser's directors, partners, members, managers or trustees.

b.       Purchaser Acknowledgement. As of the expiration of the Condition Date
Purchaser acknowledges that it has been given a reasonable opportunity to
inspect and investigate the Property, all improvements thereon and all aspects
relating thereto, either independently or through agents and experts of
Purchaser's choosing and that Purchaser is acquiring the Property based upon
Purchaser's own investigation and inspection thereof, but subject to its
reliance on the representations and warranties of the Vendor contained in this
Agreement.

7.       VENDOR'S DELIVERIES/COVENANTS. the vendor will provide to the purchaser
the following:

a.       Survey and other Documentation. The Vendor covenants to make available
to the Purchaser any plan of survey and construction drawings or environmental
studies that are in the possession of the Vendor, For clarity, the Vendor shall
have no responsibility to provide any new or up to date survey except as may be
in the Vendor's possession as of the date of this Agreement. Any surveys, tests,
investigations, or studies, performed by or at the direction of Purchaser shall
be at Purchaser's sole cost and expense.

b.       Miscellaneous Documentation. Between the date of this Agreement and the
Condition Date, the Vendor shall, upon reasonable written request in advance by
the Purchaser, provide the Purchaser with reasonable access to pertinent files,
documents, inspection reports and historical building operating statements that
are in the possession of the Vendor. In addition, the Vendor shall cooperate in
providing reasonable access to Purchaser and its contractors for the purpose of
completing roof, mechanical, environmental, and structural space inspections.
All costs of such inspections shall be the responsibility of Purchaser and shall
be at Purchaser's sole cost and expense. Purchaser shall restore any damage
caused to the Property by Purchaser's entry on the Property for inspection
purposes at Purchaser's sole cost and expense if the transaction contemplated
under this Agreement is not completed.

c.       Material Change(s). The Vendor covenants that until the successful
completion of this transaction, the Vendor will give the Purchaser prompt
written notice of any material change of which the Vendor becomes aware in
respect of any of the documentation delivered pursuant to this Agreement, or any
change of which the Vendor becomes aware in respect of the Property.

d.       Commissions. The Vendor shall pay any real estate commissions payable
in connection with the sale of the Property and indemnify the Purchaser, if
necessary, only for the amount of such commissions.

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                                       -5-

8.       TITLE. Provided that title to the Property will be marketable and free
and clear of all liens, charges, encumbrances, easements, encroachments,
rights-of-way, dower or spousal claims, restrictive covenants, reservations and
defects of every nature or kind other than any building or other restrictions
registered on title to the Property, and any easements or rights-of-way for the
installation of and/or maintenance of services, utilities, provided same have
been complied with to the Closing Date. The Purchaser will be allowed until the
22nd day of August 2003 to examine the title to the Property at its own expense.
If within that time the Purchaser provides any valid objection to title or
description in writing to the Vendor which the Vendor is unable or unwilling to
remove or satisfy and which the Purchaser will not waive, this Agreement will,
at the option of the Purchaser, and notwithstanding any intermediate acts or
negotiations in respect of such objection, terminate and the Deposit and other
monies paid under this Agreement by the Purchaser, together with accrued
interest, will be returned to the Purchaser immediately. The Vendor covenants to
discharge all liens, charges, and other encumbrances on or prior to the Closing
Date and will deliver up vacant possession of the Property on the Closing Date.

9.       ADJUSTMENTS.

a.       Utilities. The amount due on any gas, electric, water, sewer, or other
utility bill relating to the Property shall be paid by Vendor as of the Closing
Date (the day itself to be apportioned to the Purchaser). Any utility deposits
made by Vendor shall be and remain the property of Vendor. Vendor shall
terminate all such utilities in its name as of August 29, 2003 and shall have no
further obligation to pay any such utilities. Purchaser shall be responsible for
notifying all utilities and commencing their own service as of August 30, 2003,
in their name. Purchaser shall be responsible for paying all utilities
commencing August 30,2003.

b.       Realty Taxes. All real estate taxes in respect to any calendar year
prior to the year in which the Closing Date occurs, including penalties,
interest and deferred payments, shall be paid by Vendor on or before the Closing
Date. Purchaser shall have the same obligation for the period of time subsequent
to the calendar year in which the Closing Date occurs. All real estate taxes
attributable to the Property due and payable in the calendar year in which the
Closing Date occurs shall be prorated as of the Closing Date (the day itself to
be apportioned to the Purchaser). If the Closing Date shall occur before the
actual real estate taxes for the year of the Closing Date (i.e., taxes due and
payable in 2003) are known, the apportionment of real estate taxes shall be upon
the basis of the real estate taxes for the immediately preceding year, provided
that if the taxes for the current year are thereafter determined to be more or
less than the real estate taxes for the preceding year (after any appeal in
assessed valuation thereof is concluded) Vendor and Purchaser promptly shall
adjust the proration of such real estate taxes and Vendor or Purchaser, as the
case may be, shall pay to the other any amount required as a result of such an
adjustment. If there is any refund, this shall be prorated between Vendor and
Purchaser based on the Closing Date. For purposes of calculating prorations, all
prorations shall be made on the basis of the actual number of days of the year
and month which have elapsed as of the Closing Date.

c.       Insurance. Any insurance maintained by the Vendor will not be
transferred as of the Closing Date but will remain the responsibility of the
Vendor until the Closing Date. All risk of loss or damage with respect to the
Property shall pass from Vendor to Purchaser on the Closing Date.

10.      GST. No goods and services tax will be paid by the Purchaser to the
Vendor with respect to the purchase by the Purchaser of the Property if the
Purchaser provides to the Vendor on or

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                                       -6-

prior to the Closing Date a certificate of the Purchaser indicating the
Purchaser's registration number for the purposes of the Goods and Services Tax
imposed under the Excise Tax Act (Canada).

11.      CLOSING ARRANGEMENTS AND VENDOR'S DELIVERIES. This Agreement will be
completed at or prior to 5:00 p.m. (Ottawa time) on the Closing Date at the
offices of the Vendor's Solicitors in Ottawa, Ontario. On the Closing Date the
Vendor will deliver to the Purchaser the following documents:

a.       Deed. A registrable transfer/deed to the Property in fee simple;

b.       Certificate. A Certificate of the Vendor certifying that it is not a
non-resident within the meaning of S. 116 of the Income Tax Act (Canada) and
that the representations and warranties of the Vendor contained in this
Agreement are true and accurate as of the Closing Date;

c.       Undertaking. An undertaking to adjust and readjust any items properly
adjustable pursuant to this Agreement.

d.       Keys. All keys and entry devices with respect to the property and the
combination of any locks or vaults.

e.       Other. Such other bills of sale, transfers, assignments, declarations,
discharges, if any, and documents relating to the completion of this Agreement
as may be reasonably necessary and appropriate to complete the transaction
contemplated in this Agreement.

12.      CLOSING DELIVERIES OF THE PURCHASER. The Purchaser will on the Closing
Date deliver to the Vendor the amount of SEVEN HUNDRED SEVENTY-FIVE THOUSAND
CANADIAN DOLLARS (CDN $775,000) by a certified cheque or bank draft payable to
the Vendor, or as the Vendor may in writing direct; an undertaking to readjust;
the GST certificate referred to in Section 10, an executed mortgage in
accordance with section 2, Mortgage Terms, hereof in substantially the form of
Schedule "B" attached hereto, and such other documentation as may be reasonably
necessary and appropriate to complete the transaction contemplated in this
Agreement.

13.      RISK. All buildings and improvements on the Property will be and remain
until the Closing Date at the risk of the Vendor. Until completion of this
Agreement, the Vendor will maintain insurance on the Property in such amounts as
a careful and prudent owner of similar property and premises would maintain.
Pending completion, the Vendor will hold all insurance policies, if any, and the
proceeds from any such policies in trust for the parties as their interests may
appear and In the event of damage, the Purchaser may either terminate this
Agreement and have the Deposit and other monies paid under this Agreement by the
Purchaser returned together with any accrued interest or, at its option, take
the proceeds of any insurance and complete the purchase.

14.      LIABILITY OF PURCHASER. If the Purchaser will default in the
performance of any obligation under this Agreement and such default entitles the
Vendor to terminate this Agreement, such right of termination will be the
Vendor's only remedy and the, Vendor will be entitled to retain the Deposit as
liquidated damages and not as a penalty.

15.      CONFIDENTIALITY. Vendor and Purchaser hereby covenant and agree that,
at all times after the date of execution hereof and prior to the Closing Date,
unless consented to in writing by the

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other party, no press release or other public disclosure concerning this
transaction shall be made, and each party agrees to use best efforts to prevent
disclosure of this transaction, other than (i) to directors and officers of the
parties, and employees, prospective mortgage lenders of Purchaser, solicitors,
accountants, agents and affiliates of the parties who are Involved in the
ordinary course of business with this transaction, all of which shall be
instructed to comply with the confidentiality provisions hereof or (ii) as
required by law. Upon termination of this Agreement for any reason by either
party, Purchaser shall have the obligation to return to Vendor all documents and
copies thereof and any other information received by Purchaser from Vendor or
Vendor's agents with respect to the Property ("Information ")and shall not
disclose to any third party the contents thereof. Vendor shall have no
obligation to return any sums due Purchaser until all Information has been
returned to Vendor.

16.      ASSIGNMENT. Neither party may assign this Agreement and/or the Mortgage
without the prior written consent of the other party which consent shall not be
unreasonably withheld.

17.      GENERAL. Any tender of documents or money may be made upon the Vendor
or the Purchaser or upon their respective solicitors and money may be tendered
by certified cheque or bank draft drawn on a Canadian Chartered Bank. This
Agreement will be binding upon and inure to the benefit of the Vendor and the
Purchaser and their respective successors and assigns. This Agreement may be
executed in any number of counterparts, each of which will be deemed to be an
original and all of which taken together will be deemed to constitute one and
the same Agreement. Counterparts may be executed either in an original or fax
form and the parties agree to adopt any signature received by facsimile as
original signatures, provided however that any party providing its signature in
such manner promptly forwards to the other party an original of the signed copy
of the Agreement which, was so faxed. This Agreement will be governed and
construed in accordance with the laws of the Province of Ontario and the laws of
Canada applicable to this Agreement and will be treated in all respects as an
Ontario contract. The use of headings in this Agreement is for convenience of
reference only and will not affect the meaning or construction of this
Agreement. This Agreement constitutes the entire Agreement between the parties
pertaining to the subject matter of this Agreement and supersedes all prior
agreements, warranties or representations, discussions and negotiations with
respect to this Agreement, whether oral or written. If the time limited for the
performance or completion of any matter in this Agreement does not fall on a day
that the public offices for registering documents to be delivered pursuant to
this Agreement are open for business (a "Business Day"), the time so limited
will extend to the next following Business Day. The parties will promptly do,
execute, deliver or cause to be done, executed and delivered all further acts,
documents and things to carry out the true intent of this Agreement. In the
event of a conflict between the terms and conditions of the body of this
Agreement and Schedule "B" hereto, the terms and conditions contained in the
body of this Agreement shall take precedence over the terms and conditions
contained in Schedule "B" hereto.

18.      PLANNING ACT. This Agreement will be effective to create an interest in
the Property only if the provisions of the Planning Act (Ontario) are complied
with.

19.      NOTICE. Any notice, certificate, consent, waiver, amendment or other
written communication required or permitted to be given under the Agreement will
be in writing made by the parties or their respective solicitors and will be
effectively given and made if delivered personally or by facsimile
communication, in the case of the Vendor, addressed to it at:

         GSI Lumonics Inc.
         39 Manning Road

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                                      -8-

         Bellerica,MA 01821
         U.S.A
         Attention: Mr. Charles Winston, President and Chief Executive Officer
         Facsimile No.: (978) 663-9466

and in the case of the Purchaser, addressed to it at:

         Negotiart Inc.
         4 Cyrus Court
         Ottawa, Ontario
         K2H9C9
         Attention: Mr. Tony Isaac, President
         Facsimile No.: (613)762-2092

Any communication given or made will be deemed to have been given or made on the
day it was received unless (i) it was received after 5 p.m.; or (ii) if such day
is not a Business Day, in each of which cases it will be deemed to have been
given and made and to have been received on the next following Business Day.

20.      COUNTERPARTS. This Agreement may be executed in any number of
counterparts, each of which will be deemed an original, but all of which
together will constitute one and the same instrument.

IN WITNESS WHEREOF the parties have executed this Agreement.

NEGOTIART INC. "IN TRUST"                        GSI LUMONICS INC.

By:/s/ Tony Isaac                              By:/s/ Thomas R. Swain
   ----------------------------                   ------------------------------
Name:  Tony Isaac                              Name:  Thomas R. Swain
Title: President                               Title: Vice President & CFO

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                                       -9-

                                  SCHEDULE "A"
                        LEGAL DESCRIPTION OF THE PROPERTY

         PIN 04516-0012 and

         PIN 04516-0013 and

         PIN 04516-0036

         ALL AS FURTHER DESCRIBED IN SCHEDULE B

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                                      -10-

                                  SCHEDULE "B"

                          MORTGAGE TERMS AND CONDITIONS