Document:

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EXHIBIT 10.50

                          SECURITIES PURCHASE AGREEMENT

         THIS SECURITIES PURCHASE AGREEMENT made as of the 9th day of November,
2004, by and between Markland Technologies, Inc. (the "COMPANY"), a corporation
organized under the laws of the State of Florida, with its principal offices at
#207 54 Danbury Road, Ridgefield, CT, 06877, and the purchaser whose name and
address is set forth on the signature page hereof (the "Purchaser") (each
agreement with a Purchaser shall be deemed a separate and independent agreement
between such Purchaser and the Company, except that each Purchaser acknowledges
and consents to the rights granted to each other Purchaser under this
Agreement);

         WITNESSETH THAT:

         WHEREAS, subject to the terms and conditions set forth in this
Agreement, the Company desires to sell Secured 8% Convertible Notes in
substantially the form of EXHIBIT I hereto (the "NOTES"), and five year warrants
to purchase shares the Company's Common Stock, $.0001 par value per share
("COMMON STOCK"), in substantially the form of EXHIBIT II hereto (the
"WARRANTS"); and

         WHEREAS, the Purchaser understands and acknowledges that the Company
may enter into one or more substantially identical securities purchase
agreements with other persons purchasing Notes and Warrants;

         IN CONSIDERATION of the mutual covenants contained in this Agreement,
and intending to be legally bound hereby, the Company and the Purchaser agree as
follows:

SECTION 1. AUTHORIZATION OF SALE OF THE SECURITIES. Subject to the terms and
conditions of this Agreement, the Company has authorized the sale to the
Purchaser of a Note in the aggregate principal amount indicated on the signature
page hereof, and a Warrant pursuant to which such Purchaser shall have the right
to acquire the number of shares of Common Stock indicated on the signature page
hereof.

SECTION 2. AGREEMENT TO SELL AND PURCHASE THE NOTE AND WARRANT. At the Closing
(as defined in SECTION 3), the Company will sell the Note and the Warrant to the
Purchaser, and the Purchaser will buy the Note and Warrant from the Company (the
"PURCHASED SECURITIES"), upon the terms and conditions hereinafter set forth, in
exchange for a cash payment of [__________] DOLLARS ($_______) (the "PURCHASE
PRICE"). The Purchase Price shall be paid by wire transfer of immediately
available funds to the account set forth on EXHIBIT III hereof.

SECTION 3. DELIVERY OF THE NOTE AND WARRANT AT THE CLOSING. The completion of
the purchase and sale of the Note and Warrant (the "CLOSING") shall occur
simultaneously with the execution hereof (the "CLOSING DATE"). At the Closing,
the Company will issue to the Purchaser a Note and a corresponding Warrant,
registered in the name of the Purchaser, or in such nominee name(s) as
designated by the Purchaser in writing. The name(s) in which the Note and
Warrant are to be registered are set forth in the Questionnaire attached hereto
as EXHIBIT IV. The Company's obligation to complete the purchase and sale of the
Note and Warrant being purchased hereunder and deliver such Note and Warrant to

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the Purchaser at the Closing shall be subject to the following conditions, any
one or more of which may be waived by the Company: (a) receipt by the Company of
same-day funds in the full amount of the Purchase Price; and (b) the accuracy in
all material respects of the representations and warranties made by the
Purchaser and the fulfillment of those undertakings of the Purchaser to be
fulfilled prior to or at the Closing. The Purchaser's obligation to accept
delivery of such Note and Warrant and to pay for the Note and Warrant shall be
subject to the accuracy in all material respects of the representations and
warranties made by the Company herein and the fulfillment of those undertakings
of the Company to be fulfilled prior to or at the Closing.

SECTION 4. REPRESENTATIONS, WARRANTIES AND COVENANTS OF THE COMPANY. The Company
hereby represents and warrants to, and covenants with, the Purchaser as follows:

         4.1 ORGANIZATION AND QUALIFICATION. The Company is a corporation duly
organized, validly existing and in good standing under the laws of its
jurisdiction of incorporation; and the Company is duly qualified to do business
as a foreign corporation and is in good standing in each other jurisdiction in
which qualification is required, except where the failure to be so qualified
will not have a Material Adverse Effect, as defined in SECTION 4.4.

         4.2 AUTHORIZED CAPITAL STOCK. The authorized capital stock of the
Company consists of 500,000,000 shares of Common Stock, $.0001 par value per
share, and 5,000,000 shares of Preferred Stock, $.0001 par value per share. The
issued and outstanding shares of the Company's capital stock have been duly
authorized and validly issued, are fully paid and nonassessable, have been
issued in compliance with all applicable U.S. federal and state securities laws.

         4.3 ISSUANCE, SALE AND DELIVERY OF THE SECURITIES. The Note and Warrant
being purchased hereunder have been duly authorized and, when issued, delivered
and paid for in the manner set forth in this Agreement, will be duly authorized,
validly issued, fully paid and nonassessable. The Common Stock underlying the
Note (the "NOTE SHARES"), and the Warrant (the "WARRANT SHARES;" the Note, Note
Shares, Warrant and Warrant Shares referenced herein are sometimes refered to
collectively as the "SECURITIES"), when issued, delivered and paid for in
accordance with the terms of the Warrant, will be duly authorized, validly
issued, fully paid and nonassessable. No further approval or authority of the
stockholders or the Board of Directors of the Company will be required for the
issuance and sale of the Note and Warrant to be sold by the Company as
contemplated herein. The Company's issuance of the Note and Warrant shall be in
compliance with all applicable U.S. federal and state securities laws.

         4.4 DUE EXECUTION, DELIVERY AND PERFORMANCE OF THE AGREEMENTS. The
Company has full legal right, corporate power and authority to enter into this
Agreement and perform the transactions contemplated hereby. This Agreement has
been duly authorized, executed and delivered by the Company. The execution,
delivery and performance of this Agreement by the Company and the consummation
by the Company of the transactions herein contemplated will not violate any
provision of the organizational documents of the Company. Except for the
liabilities and obligations created by this Agreement and related transactions,
the execution, delivery and performance of this Agreement by the Company and the
consummation by the Company of the transactions herein contemplated will not
result in the creation of any lien, charge, security interest or encumbrance

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upon any assets of the Company pursuant to the terms or provisions of, or
conflict with, result in the breach or violation of, or constitute, either by
itself or upon notice or the passage of time or both, a default under any
material agreement, mortgage, deed of trust, lease, franchise, license,
indenture, permit or other instrument to which the Company is a party or by
which the Company or any of its properties may be bound or affected and in each
case which would have a material adverse effect on the condition (financial or
otherwise), properties, business, prospects, or results of operations of the
Company and its subsidiaries, taken as a whole (a "MATERIAL ADVERSE EFFECT"), or
any statute or any authorization, judgement, decree, order, rule or regulation
of any court or any regulatory body, administrative agency or other governmental
body applicable to the Company or any of its respective properties. Except as
disclosed in EXHIBIT V attached hereto, no consent, approval, authorization or
other order of any court, regulatory body, administrative agency or other
governmental body is required for the execution and delivery of this Agreement
or the consummation of the transactions contemplated by this Agreement, except
for compliance with all U.S. federal and state securities laws applicable to the
offering and sale of the Note and the Warrant. Upon its execution and delivery,
and assuming the valid execution thereof by the Purchaser, this Agreement will
constitute a valid and binding obligation of the Company, enforceable against
the Company in accordance with its terms, except as enforceability may be
limited by applicable bankruptcy, insolvency, reorganization, moratorium or
similar laws affecting creditors' and contracting parties' rights generally and
except as enforceability may be subject to general principles of equity
(regardless of whether such enforceability is considered in a proceeding in
equity or at law).

         4.6 NO DEFAULTS. The Company is not in violation of or default under
any provision of its Articles of Incorporation or by-laws, or other
organizational documents. The Company, and to the best of the Company's
knowledge, each other party thereto, is not in breach of or indefault with
respect to any provision of any agreement, judgement, decree, order, mortgage,
deed of trust, lease, franchise, license, indenture, permit or other instrument
to which the Company is a party or by which the Company or any of its properties
are bound which would have a Material Adverse Effect on the condition of the
business; and there does not exist any state of facts which, with notice or
lapse of time or both, would constitute an event of default as defined in such
documents on the part of the Company, and to the best of the Company's
knowledge, on the part of each other party thereto, except for such breaches and
defaults would not have a Material Adverse Effect.

         4.7 NO ACTIONS. Except as disclosed in EXHIBIT VI attached hereto or
the Company's Information Documents, as defined in SECTION 4.14, there are no
legal or governmental actions, suits or proceedings pending or, to the best of
the Company's knowledge, threatened to which the Company or any of its
subsidiaries is or may be a party or of which property owned or leased by the
Company or any of its subsidiaries is or may be subject (except for threatened
litigation which individually or in the aggregate would not have a Material
Adverse Effect); and no labor disturbance by the employees of the Company or any
of its subsidiaries exists, or, to the best of the Company's knowledge, is
imminent. Neither the Company nor any of its subsidiaries is a party to or
subject to the provisions of any injunction, judgment, decree or order of any
court, regulatory body, administrative agency or other governmental body.

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         4.8 PROPERTIES. The Company and each of its subsidiaries has, as of the
applicable dates referred to therein, good and marketable title to all the
properties and assets reflected as owned by it in the financial statements
included in the Company's Information Documents subject to no lien, mortgage,
pledge, charge or encumbrance of any kind except (i) those existing liens listed
in EXHIBIT VII ("PERMITTED LIENS"), (ii) those, if any, reflected in such
financial statements, or (iii) those which are not material in amount and do not
adversely affect the use made and currently proposed to be made of such property
by the Company or such subsidiary. The Company and its subsidiaries hold their
leased properties under valid and binding leases. The Company and its
subsidiaries own or lease all such properties as are necessary to their
operations as now conducted.

         4.9 COMPLIANCE. The Company has not been advised, or has no reason to
believe, that the Company or any of its subsidiaries is not conducting business
in compliance with all applicable laws, rules and regulations of the
jurisdictions in which it is conducting business, except where failure to be so
in compliance would not have a Material Adverse Effect.

         4.10 INTEGRATION, ETC. Neither the Company nor any of its Affiliates
(as defined in Rule 501(b) of Regulation D under the Securities Act of 1933, as
amended (the "SECURITIES ACT") has directly, or through any agent, (i) sold,
offered for sale, solicited offers to buy or otherwise negotiated in respect of,
any "security" (as defined in the Securities Act) which is or could be
integrated with the sale of the Notes and Warrants in a manner that would
require the registration under the Securities Act of the Notes and Warrants or
(ii) engaged in any form of general solicitation or general advertising (as
those terms are used in Regulation D under the Securities Act) in connection
with the offering of the Notes and Warrants.

         4.11 INSURANCE. The Company and its subsidiaries maintain insurance of
the types and in the amounts that the Company and its subsidiaries reasonably
believe is adequate for their respective businesses, including, but not limited
to, insurance against theft, damage, destruction, acts of vandalism and all
other risks customarily insured against by similarly situated companies, all of
which insurance is in full force and effect.

         4.12 REPORTING COMPANY; LISTED SECURITIES. The Company has filed all
reports required to be filed by Sections 13(a) or 15(d) of the Securities
Exchange Act of 1934 (the "Exchange Act") during the twelve (12) months
preceding the Closing Date and has been subject to such filing requirements for
such twelve (12) month period.

         4.13 ADDITIONAL INFORMATION. The Company has made available to the
Purchaser a true and complete copy of each report, schedule, registration
statement and definitive proxy statement filed by the Company with the SEC under
the Securities Act and the Exchange Act since December 31, 2003 (as such
documents have since the time of their filing been amended, the "INFORMATION
DOCUMENTS"), which are all the documents (other than preliminary material) that
the Company was required to file with the Commission since such date. As of
their respective dates, the Information Documents complied in all material
respects with the requirements of the Securities Act or the Exchange Act, as the
case may be, and the rules and regulations of the Commission thereunder
applicable to the Information Documents or such other forms, reports or other
documents, and none of the Information Documents contained any untrue statement
of a material fact or omitted to state a material fact required to be stated
therein or necessary to make the statements therein, in light of the

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circumstances under which they were made, not misleading. The financial
statements of the Company included in the Information Documents comply as to
form in all material respects with applicable accounting requirements and with
the published rules and regulations of the Commission with respect thereto, have
been prepared in accordance with GAAP applied on a consistent basis during the
periods involved (except as may be indicated in the notes thereto or, in the
case of the unaudited statements, as permitted by the rules and regulations of
the Commission) and fairly present (subject, in the case of the unaudited
statements, to normal, recurring audit adjustments, which were not individually
or in the aggregate material) in all material respects the financial position of
the Company as at the dates thereof and the results of its operations and cash
flows for the periods then ended.

SECTION 5. REPRESENTATIONS, WARRANTIES AND COVENANTS OF THE PURCHASER.

         5.1 ACCREDITED INVESTOR. The Purchaser represents and warrants to, and
covenants with, the Company that: (i) the Purchaser is knowledgeable,
sophisticated and experienced in making, and is qualified to make, decisions
with respect to investments in securities representing an investment decision
like that involved in the purchase of the Notes and Warrants, including
investments in securities issued by the Company, and has requested, received,
reviewed and understood all information it deems relevant in making an informed
decision to purchase the Notes and Warrants, including, without limitation, the
information contained in the Information Documents; (ii) it acknowledges that
the offering of the Notes and Warrants pursuant to this Agreement has not been
reviewed by the Commission or any state regulatory authority; (iii) the
Purchaser is acquiring the Note and Warrant set forth in the signature page
hereto, for its own account for investment only and with no present intention of
distributing any of such Note and Warrant or any arrangement or understanding
with any other persons regarding the distribution of such Note and Warrant; (iv)
the Purchaser will not, directly or indirectly, offer, sell, pledge, transfer or
otherwise dispose of (or solicit any offers to buy, purchase or otherwise
acquire or take a pledge of) the Note or Warrant except in compliance with the
Securities Act and the rules and regulations promulgated thereunder and any
applicable state securities or blue sky laws; (v) the Purchaser has completed or
caused to be completed the Questionnaire attached hereto as EXHIBIT IV, for use
in preparation of the Registration Statement, and the answers thereto are true
and correct as of the date hereof and will be true and correct as of the
effective date of the Registration Statement; (vi) the Purchaser has, in
connection with its decision to purchase the Note and Warrant, not relied upon
any representations or other information (whether oral or written) other than as
set forth in the Information Documents and the representations and warranties of
the Company contained herein; (vii) the Purchaser has had an opportunity to
discuss this investment with representatives of the Company and ask questions of
them and such questions have been answered to the full satisfaction of the
Purchaser; and (viii) the Purchaser is an "accredited investor" within the
meaning of Rule 501 of Regulation D promulgated under the Securities Act.

         5.2 COMPLIANCE WITH SECURITIES ACT. The Purchaser hereby covenants with
the Company not to make any sale of any Securities without satisfying the
requirements of the Securities Act.

         5.3 AUTHORITY. The Purchaser further represents and warrants to, and
covenants with, the Company that (i) the Purchaser has full right, power,
authority and capacity to enter into this Agreement and to consummate the

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transactions contemplated hereby and has taken all necessary action to authorize
the execution, delivery and performance of this Agreement, (ii) the Purchaser is
duly organized, validly existing and in good standing under the laws of its
jurisdiction of organization, (iii) the execution, delivery and performance of
this Agreement by Purchaser and the consummation by the Purchaser of the
transactions contemplated by this Agreement will not violate any provision of
the organizational documents of Purchaser or conflict with, result in the breach
or violation of, or constitute, either by itself or upon notice or the passage
of time or both, a default under any material agreement, mortgage, deed of
trust, lease, franchise, license, indenture, permit or other instrument to which
the Purchaser is a party or, any statute or any authorization, judgment, decree,
order, rule or regulation of any court or any regulatory body, administrative
agency or other governmental body applicable to the Purchaser, (iv) no consent,
approval, authorization or other order of any court, regulatory body,
administrative agency or other governmental body is required on the part of the
Purchaser for the execution and delivery of this Agreement or the consummation
of the transactions contemplated by this Agreement, and (v) upon the execution
and delivery of this Agreement, this Agreement shall constitute a valid and
binding obligation of the Purchaser enforceable in accordance with its terms,
except as enforceability may be limited by applicable bankruptcy, insolvency,
reorganization, moratorium or similar laws affecting creditors' and contracting
parties' rights generally and except as enforceability may be subject to general
principles of equity (regardless of whether such enforceability is considered in
a proceeding in equity or at law) and (vi) there is not in effect any order
enjoining or restraining the Purchaser from entering into or engaging in any of
the transactions contemplated by this Agreement.

         5.4 RISK. The Purchaser recognizes that an investment in the Securities
is speculative and involves a high degree of risk, including a risk of total
loss of the Purchaser's investment.

         5.5 INFORMATION ABOUT PURCHASER. All of the information provided to the
Company or its agents or representatives concerning the Purchaser's suitability
to invest in the Company and the representations and warranties contained
herein, are complete, true and correct as of the date hereof. The Purchaser
understands that the Company is relying on the statements contained herein to
establish an exemption from registration under U.S. federal and state securities
laws.

         5.6 ADDRESS. The address set forth in the signature page hereto is the
Purchaser's true and correct domicile.

         5.7 PLAN OF DISTRIBUTION. The Purchaser covenants to provide the
Company an updated, accurate and complete plan of distribution at all times
during which the Company is required to keep the Registration Statement in
effect.

         5.8 LEGEND. The Purchaser understands and agrees that each certificate
or other document evidencing any of the Securities shall be endorsed with the
legends in substantially the form set forth in EXHIBIT VIII as well as any other
legends required by applicable law, and the Purchaser covenants that the
Purchaser shall not transfer any Securities represented by any such security
without complying with the restrictions on transfer described in the legends
endorsed on such security.

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SECTION 6. SURVIVAL OF REPRESENTATIVES, WARRANTIES AND AGREEMENTS.
Notwithstanding any investigation made by any party to this Agreement, all
covenants, agreements, representations and warranties made by the Company and
the Purchaser herein and in any certificates or documents delivered pursuant
hereto or in connection therewith shall survive following the delivery to the
Purchaser of the Note and Warrant being purchased and the payment therefor.

SECTION 7. REGISTRATION OF THE NOTE SHARES AND WARRANT SHARES IN COMPLIANCE WITH
THE SECURITIES ACT.

         7.1 REGISTRATION PROCEDURES AND EXPENSES. The Company shall:

                  (a) the Company shall file with the SEC on Form SB-2, or such
other form as appropriate ("REGISTRATION STATEMENT"), the resale pursuant to
Rule 415 under the Securities Act of the Note Shares and Warrant Shares (the
"REGISTRABLE SECURITIES") by the Purchaser from time to time on the facilities
of any securities market on which shares of the Common Stock are then traded or
in privately-negotiated transactions, and specifically excluding underwritten
offerings;

                  (b) if: (i) a Registration Statement is not filed on or prior
to the 45th day following the Closing Date, or (ii) a Registration Statement is
not declared effective by the SEC on or prior to the 90th day following the
Closing Date, or (iii) after the SEC first declares a Registration Statement
effective, without regard for the reason thereunder or efforts therefore, such
Registration Statement ceases for any reason to be effective and available to
the holders of the Registrable Securities as to all Registrable Securities
registered under such Registration Statement at any time prior to the earlier
date when the Registrable Securities have been sold or may be sold without
volume restrictions pursuant to Rule 144(k) as determined by counsel to the
Company, for more than an aggregate of 20 Trading Days in any twelve month
period (which need not be consecutive) (any such failure or breach being
referred to as an "EVENT," and for purposes of clauses (i) or (ii) the date on
which such Event occurs, or for purposes of clause (iii) the date which such 20
Trading Day period is exceeded, being referred to as "EVENT DATE"), then on each
such Event Date, and on the same day as such Event Date in each subsequent month
until the applicable Event is cured (the Event Date and each such subsequent
date, a "PAYMENT DATE") the Company shall pay to each holder an amount, as
partial liquidated damages and not as a penalty, equal to 2.0% of the Purchase
Price paid by such holder for Securities at closing pursuant to this Securities
Purchase Agreement, such payment being 1% in cash and 1% in Common Stock,
PROVIDED, that in the event the Company fails to deliver such Common Stock by
the 10th Trading Day following such Payment Date, such payment shall be, at the
discretion of the Holder, in all cash. If the Company fails to pay any partial
liquidated damages pursuant to this Section in full within seven days after the
date payable, the Company will pay interest thereon at a rate of 10% per annum
(or such lesser maximum amount that is permitted to be paid by applicable law)
to the holder, accruing daily from the date such partial liquidated damages are
due until such amounts, plus all such interest thereon, are paid in full. The
partial liquidated damages pursuant to the terms hereof shall apply on a daily
pro-rata basis for any portion of a month prior to the cure of an Event, except
in the case of the first Event Date. Liquidated damages payable in Common Stock
pursuant to this section shall be determined by calculating the quotient of the
dollar amount of such liquidated damages divided by either (1) the average of
the closing bid prices of the Common Stock for the five (5) Trading Days prior

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to the Payment Date and (2) the closing bid price of the Common Stock on the day
preceding the date such Common Stock is delivered pursuant to this SECTION 7(B),
whichever of (1) and (2) yields a greater number of shares;

                  (c) The Company shall, notwithstanding any termination of this
Agreement, indemnify and hold harmless each Purchaser and the officers,
directors, agents and employees of each such Purchaser, to the fullest extent
permitted by applicable law, from and against any and all losses, claims,
damages, liabilities, costs (including, without limitation, reasonable costs of
preparation and reasonable attorneys' fees) and expenses (collectively,
"LOSSES"), as incurred, arising out of or relating to any untrue or alleged
untrue statement of a material fact contained in any Registration Statement, any
Prospectus or any form of prospectus or in any amendment or supplement thereto
or in any preliminary prospectus, or arising out of or relating to any omission
or alleged omission of a material fact required to be stated therein or
necessary to make the statements therein (in the case of any Prospectus or form
of prospectus or supplement thereto, in light of the circumstances under which
they were made) not misleading, except to the extent, but only to the extent,
that (1) such untrue statements or omissions are based solely upon information
regarding such Purchaser furnished in writing to the Company by such Purchaser
expressly for use therein, or to the extent that such information relates to
such Purchaser or such Purchaser's proposed method of distribution of
Registrable Securities and was reviewed and expressly approved in writing by
such Purchaser expressly for use in the Registration Statement, such Prospectus
or such form of prospectus or in any amendment or supplement thereto or (2) the
use by such Purchaser of an outdated or defective prospectus after the Company
has notified such Purchaser in writing that the Prospectus is outdated or
defective and prior to the receipt by such Purchaser of an advice or an amended
or supplemented prospectus.

                  (d) Each Purchaser shall, severally and not jointly, indemnify
and hold harmless the Company, its directors, officers, agents and employees,
and each person who controls the Company, to the fullest extent permitted by
applicable law, from and against all Losses, as incurred, arising solely out of
or based solely upon: (x) such Purchaser's failure to comply with the prospectus
delivery requirements of the Securities Act or (y) any untrue statement of a
material fact contained in any Registration Statement, any prospectus, or any
form of prospectus, or in any amendment or supplement thereto, or arising solely
out of or based solely upon any omission of a material fact required to be
stated therein or necessary to make the statements therein not misleading to the
extent, but only to the extent that, (1) such untrue statements or omissions are
based solely upon information regarding such Purchaser furnished in writing to
the Company by such Purchaser expressly for use therein, or to the extent that
such information relates to such Purchaser or such Purchaser's proposed method
of distribution of Registrable Securities and was reviewed and expressly
approved in writing by such Purchaser expressly for use in the Registration
Statement, such prospectus or such form of prospectus or in any amendment or
supplement thereto or (2) the use by such Purchaser of an outdated or defective
prospectus after the Company has notified such Purchaser in writing that the
Prospectus is outdated or defective and prior to the receipt by such Purchaser
of an advice or an amended or supplemented prospectus.

                  (e) If any proceeding shall be brought or asserted against any
person entitled to indemnity hereunder (an "INDEMNIFIED PARTY"), such
Indemnified Party shall promptly notify the person from whom indemnity is sought
(the "INDEMNIFYING PARTY") in writing, and the Indemnifying Party shall assume
the defense thereof, including the employment of counsel reasonably satisfactory

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to the Indemnified Party and the payment of all fees and expenses incurred in
connection with defense thereof; provided, that the failure of any Indemnified
Party to give such notice shall not relieve the Indemnifying Party of its
obligations or liabilities pursuant to this Agreement, except (and only) to the
extent that it shall be finally determined by a court of competent jurisdiction
(which determination is not subject to appeal or further review) that such
failure shall have proximately and materially adversely prejudiced the
Indemnifying Party.

         An Indemnified Party shall have the right to employ separate counsel in
any such proceeding and to participate in the defense thereof, but the fees and
expenses of such counsel shall be at the expense of such Indemnified Party or
Parties unless: (1) the Indemnifying Party has agreed in writing to pay such
fees and expenses; (2) the Indemnifying Party shall have failed promptly to
assume the defense of such proceeding and to employ counsel reasonably
satisfactory to such Indemnified Party in any such proceeding; or (3) the named
parties to any such proceeding (including any impleaded parties) include both
such Indemnified Party and the Indemnifying Party, and such Indemnified Party
shall have been advised by counsel that a conflict of interest is likely to
exist if the same counsel were to represent such Indemnified Party and the
Indemnifying Party (in which case, if such Indemnified Party notifies the
Indemnifying Party in writing that it elects to employ separate counsel at the
expense of the Indemnifying Party, the Indemnifying Party shall not have the
right to assume the defense thereof and such counsel shall be at the expense of
the Indemnifying Party). The Indemnifying Party shall not be liable for any
settlement of any such proceeding effected without its written consent, which
consent shall not be unreasonably withheld. No Indemnifying Party shall, without
the prior written consent of the Indemnified Party, effect any settlement of any
pending proceeding in respect of which any Indemnified Party is a party, unless
such settlement includes an unconditional release of such Indemnified Party from
all liability on claims that are the subject matter of such proceeding.

         All reasonable fees and expenses of the Indemnified Party (including
reasonable fees and expenses to the extent incurred in connection with
investigating or preparing to defend such proceeding in a manner not
inconsistent with this Section) shall be paid to the Indemnified Party, as
incurred, within fifteen (15) Trading Days of written notice thereof to the
Indemnifying Party (regardless of whether it is ultimately determined that an
Indemnified Party is not entitled to indemnification hereunder; provided, that
the Indemnifying Party may require such Indemnified Party to undertake to
reimburse all such fees and expenses to the extent it is finally judicially
determined that such Indemnified Party is not entitled to indemnification
hereunder).

   The indemnity agreements contained in this SECTION 7 are in addition to any
liability that the Indemnifying Parties may have to the Indemnified Parties.

                  (f) prepare and file with the Commission such amendments and
supplements to the Registration Statement and the prospectus used in connection
therewith as may be necessary to keep the Registration Statement effective until
the earlier of (i) the second anniversary of the Closing Date, (ii) the date on
which the Purchaser may sell all the Note Shares or Warrant Shares then held by
the Purchaser within a three-month period in accordance with Rule 144 under the
Securities Act ("RULE 144"), or (iii) such time as all the Note Shares and
Warrant Shares which the Purchaser has a right to acquire have been sold
pursuant to a registration statement;

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                  (g) so long as the Registration Statement is effective
covering the resale of the Note Shares and Warrant Shares owned by the
Purchaser, furnish to the Purchaser with respect to the Note Shares and Warrant
Shares registered under the Registration Statement such reasonable number of
copies of prospectuses and such other documents as the Purchaser may reasonably
request, in order to facilitate the public sale or other disposition of all or
any of the Note Shares and Warrant Shares by the Purchaser;

                  (h) file documents required of the Company for blue sky
clearance in states specified in writing by the Purchaser; provided, however,
that the Company shall not be required to qualify to do business or consent to
service of process in any jurisdiction in which it is not so qualified or has
not so consented;

                  (i) with a view to making available to the Purchaser the
benefits of Rule 144 (or its successor rule) and any other rule or regulation of
the Commission that may at any time permit the Purchaser to sell the Note Shares
and Warrant Shares to the public without registration, the Company covenants and
agrees to: (i) make and keep public information available, as those terms are
understood and defined in Rule 144, until the earlier of (A) such date as all of
the Purchaser's Note Shares and Warrant Shares may be resold within a given
three-month period pursuant to Rule 144 or any other rule of similar effect or
(B) such date as all of the Purchaser's Shares shall have been resold and (ii)
file with the Commission in a timely manner all reports and other documents
required of the Company under the Securities Act and under the Exchange Act.

         7.3 MARKET STAND-OFF.

                  (a) The Purchaser agrees that until the date that is forty
(40) Trading Days following the date upon which the SEC declares the
Registration Statement effective (the "EFFECTIVE DATE"), the Purchaser shall
not, offer, pledge, sell, grant any right, option or warrant to purchase or
otherwise transfer or dispose of, directly or indirectly, any Note Shares or
Warrant Shares. For purposes of this Agreement "Trading Day" shall mean any day
during which the principal trading market for the Common Stock shall be open for
business.

SECTION 8. SECURITY AGREEMENT.

                  (a) EXHIBIT IX is the Security Agreement, dated September 21,
2004, by and among the Company and the Secured Parties named therein (the
"SECURITY AGREEMENT"). The Company hereby grants, effective upon the Closing, to
the Purchaser a security interest and lien in (i) all Accounts, (ii) all Chattel
Paper, (iii) all Commercial Tort Claims, (iv) all Documents, (v) all Equipment,
(vi) all General Intangibles, (vii) all Goods, (viii) all Instruments, (ix) all
Insurance, (x) all Inventory; (xi) all Letter of Credit Rights, (xii) all other
goods and other personal property of such Grantor, whether tangible or
intangible, (xiii) to the extent not otherwise included in clauses (i) through
(xiii) of this Section, all Collateral Records, Collateral Support and
Supporting Obligations in respect of any of the foregoing, (xiv) to the extent
not otherwise included in clauses (i) through (xiv) of this Section, all other
property in which a security interest may be granted under the UCC or which may
be delivered to and held by the Agent pursuant to the terms hereof, and (xv) to

                                       10
<PAGE>

the extent not otherwise included in clauses (i) through (xv) of this Section,
all Proceeds, products, substitutions, accessions, rents and profits of or in
respect of any of the foregoing (the "COLLATERAL") of the Company on the same
terms and conditions as the Security Agreement (the "SECURITY INTEREST") and
that the Company and the Purchaser shall have the same rights, duties, and
obligations as if Purchaser was a party to the Security Agreement; PROVIDED
THAT: (a) the Purchaser shall not be considered a "Secured Party" for purposes
of Section 15 of the Security Agreement, until the Secured 8% Convertible Notes
dated September 21, 2004, made by the Company pursuant to the Security
Agreement, have been converted or paid in full, (b) the Purchasers shall not
have a right to prevent the Company from granting further security interests,
and (c) the Security Interest shall be subject to the provisions of SECTIONS
8(B) below.

                  (b) The Security Interest, this Agreement and the transactions
contemplated hereby are intended to comply with the requirements for
subordination under, and to the fullest extent necessary to so comply are
expressly subordinated to, the security interest granted to the holders of the
Promissory Notes (the "EOIR NOTES"), dated June 29, 2004, made by EOIR pursuant
to a Security Agreement, dated June 29, 2004, between EOIR and the holders of
the EOIR Notes, (the "EOIR SECURITY AGREEMENT"), without limiting the generality
of the foregoing, the Security Interest created by this Agreement is junior to
and subordinated to the Liens (as defined in the EOIR Security Agreement) to the
extent necessary for it to be a "Permitted Lien" within the terms of the EOIR
Security Agreement and the Purchaser agrees that they will execute and deliver
any and all documents and take any actions that the holders of the EOIR Notes
and the beneficiaries of the EOIR Security Agreement may request to evidence or
effect this subordination.

SECTION 9. NOTICES. All notices, requests, consents and other communications
hereunder shall be in writing, shall be mailed by first-class registered or
certified airmail, confirmed facsimile or nationally recognized overnight
express courier postage prepaid, and shall be deemed given when so mailed and
shall be delivered as addressed as follows:

                  if to the Company, to:

                           Markland Technologies, Inc.
                           #207 54 Danbury Road
                           Ridgefield, Connecticut 06877
                           Facsimile: (203)286-1608
                           Attention:  Kenneth Ducey, Jr., CFO

                  with a copy to:

                           Foley Hoag, LLP
                           155 Seaport Boulevard
                           Boston, Massachusetts 02210
                           Facsimile: (617) 832-7000
                           Attention: David Broadwin, Esq.

or to such other person at such other place as the Company shall designate to
the Purchaser in writing; and

                                       11
<PAGE>

if to the Purchaser, at its address as set forth at the end of this Agreement,
or at such other address or addresses as may have been furnished to the Company
in writing.

SECTION 10. CHANGES. This Agreement may not be modified or amended except
pursuant to an instrument in writing, signed by the Company and the Purchaser.

SECTION 11. HEADINGS. The headings of the various sections of this Agreement
have been inserted for convenience of reference only and shall not be deemed to
be part of this Agreement.

SECTION 12. SEVERABILITY. In case any provision contained in this Agreement
should be invalid, illegal or unenforceable in any respect, the validity,
legality and enforceability of the remaining provisions contained herein shall
not in any way be affected or impaired thereby.

SECTION 13. GOVERNING LAW. This Agreement shall be governed by and construed in
accordance with the laws of the State of New York, without giving effect to any
choice of law provisions thereof.

SECTION 14. COUNTERPARTS. This Agreement may be executed in two or more
counterparts, each of which shall constitute an original, but both of which,
when taken together, shall constitute but one instrument, and shall become
effective when one or more counterparts have been signed by each party hereto
and delivered to the other party.

SECTION 15. ENTIRE AGREEMENT. This Agreement (including the attachments and
exhibits hereto) contains the entire agreement of the parties with respect to
the subject matter hereof and supersedes and is in full substitution for any and
all prior oral or written agreements and understandings between them related to
such subject matter, and neither party hereto shall be liable or bound to the
other party hereto in any manner with respect to such subject matter by any
representations, indemnities, covenants or agreements except as specifically set
forth herein.

SECTION 16. SUCCESSORS AND ASSIGNS. This Agreement shall be binding upon and
inure to the benefit of the parties and their successors and permitted assigns.

                    [REMAINDER OF PAGE INTENTIONALLY DELETED]

                                       12<PAGE>

EXHIBIT 10.51

                                                                       EXHIBIT A

NEITHER THESE SECURITIES NOR THE SECURITIES ISSUABLE UPON CONVERSION OF THESE
SECURITIES HAVE BEEN REGISTERED WITH THE SECURITIES AND EXCHANGE COMMISSION OR
THE SECURITIES COMMISSION OF ANY STATE IN RELIANCE UPON AN EXEMPTION FROM
REGISTRATION UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES
ACT"), AND, ACCORDINGLY, MAY NOT BE OFFERED OR SOLD EXCEPT PURSUANT TO AN
EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT OR PURSUANT TO AN
AVAILABLE EXEMPTION FROM, OR IN A TRANSACTION NOT SUBJECT TO, THE REGISTRATION
REQUIREMENTS OF THE SECURITIES ACT AND IN ACCORDANCE WITH APPLICABLE STATE
SECURITIES LAWS AS EVIDENCED BY A LEGAL OPINION OF COUNSEL TO THE TRANSFEROR TO
SUCH EFFECT, THE SUBSTANCE OF WHICH SHALL BE REASONABLY ACCEPTABLE TO THE
COMPANY.

No. [_]                                                                     $[_]
                                         Original Issue Date: September 21, 2004

                           MARKLAND TECHNOLOGIES, INC.
               SECURED 8% CONVERTIBLE NOTE DUE SEPTEMBER 21, 2005

                  THIS NOTE is one of a series of duly authorized and issued
notes of Markland Technologies, Inc., a Florida corporation (the "COMPANY"),
designated as its Secured 8% Convertible Notes due September 21, 2005, in the
original aggregate principal amount of five million two hundred thousand
($5,200,000) (collectively, the "NOTES" and each Note comprising the Notes, a
"NOTE").

                  FOR VALUE RECEIVED, the Company promises to pay to the order
of ___________ or its registered assigns (the "INVESTOR"), the principal
_____________, on September 21, 2005, or such earlier date as this Note is
required to be repaid as provided hereunder (the "MATURITY DATE"), and to pay
interest to the Investor on the principal amount of this Note outstanding from
time to time in accordance with the provisions hereof. All holders of Notes are
referred to collectively, as the "INVESTORS." This Note is subject to the
following additional provisions:

                  1. DEFINITIONS. In addition to the terms defined elsewhere in
this Note: (a) capitalized terms that are used but not otherwise defined herein
have the meanings given to such terms in the Purchase Agreement, dated as of the
Original Issue Date, among the Company and the Investors identified therein (the
"PURCHASE AGREEMENT"), and (b) the following terms have the meanings indicated
below:

         "ADJUSTED CONVERSION PRICE" means the lesser of (a) the Fixed
Conversion Price and (b) 80% of the average of the Closing Prices during the

<PAGE>

five (5) Trading Days prior to the applicable Conversion Date, in each case,
subject to adjustment from time to time pursuant to Section 11.

         "BANKRUPTCY EVENT" means any of the following events: (a) the Company
or any Subsidiary commences a case or other proceeding under any bankruptcy,
reorganization, arrangement, adjustment of debt, relief of debtors, dissolution,
insolvency or liquidation or similar law of any jurisdiction relating to the
Company or any Subsidiary thereof; (b) there is commenced against the Company or
any Subsidiary any such case or proceeding that is not dismissed within 75 days
after commencement; (c) the Company or any subsidiary is adjudicated by a court
of competent jurisdiction insolvent or bankrupt or any order of relief or other
order approving any such case or proceeding is entered; (d) the Company or any
Subsidiary suffers any appointment of any custodian or the like for it or any
substantial part of its property that is not discharged or stayed within 75
days; (e) under applicable law the Company or any Subsidiary makes a general
assignment for the benefit of creditors; (f) the Company or any Subsidiary fails
to pay, or states that it is unable to pay or is unable to pay, its debts
generally as they become due; or (g) the Company or any Subsidiary, by any act
or failure to act, expressly indicates its consent to, approval of or
acquiescence in any of the foregoing or takes any corporate or other action for
the purpose of effecting any of the foregoing.

         "CHANGE OF CONTROL" means the occurrence of any of the following in one
or a series of related transactions: (i) an acquisition after the date hereof by
an individual or legal entity or "group" (as described in Rule 13d-5(b)(1) under
the Exchange Act) of more than one-third of the voting rights or equity
interests in the Company; (ii) a replacement of more than one-half of the
members of the Company's board of directors in a single election of directors
that is not approved by those individuals who are members of the board of
directors on the date hereof (or other directors previously approved by such
individuals); (iii) a Fundamental Transaction (as defined in Section 11(c)), a
merger or consolidation of the Company or any Subsidiary or a sale of more than
one-half of the assets of the Company in one or a series of related
transactions, unless following such transaction or series of transactions, the
holders of the Company's securities prior to the first such transaction continue
to hold at least two-thirds of the voting rights and equity interests in the
surviving entity or acquirer of such assets; (iv) a recapitalization,
reorganization or other transaction involving the Company or any Subsidiary that
constitutes or results in a transfer of more than one-third of the voting rights
or equity interests in the Company, unless following such transaction or series
of transactions, the holders of the Company's securities prior to the first such
transaction continue to hold at least two-thirds of the voting rights and equity
interests in the surviving entity or acquirer of such assets; (v) consummation
of a "Rule 13e-3 transaction" as defined in Rule 13e-3 under the Exchange Act
with respect to the Company, or (vi) the execution by the Company or its
controlling shareholders of an agreement providing for or reasonably likely to
result in any of the foregoing events.

         "CLOSING PRICE" means, for any date, the price determined by the first
of the following clauses that applies: (a) if the Common Stock is then listed or
quoted on an Eligible Market, the closing bid price per share of the Common
Stock for such date (or the nearest preceding date) on the primary Eligible
Market or exchange on which the Common Stock is then listed or quoted; (b) if
prices for the Common Stock are then quoted on the OTC Bulletin Board, the
closing bid price per share of the Common Stock for such date (or the nearest
preceding date) so quoted; (c) if prices for the Common Stock are then reported

                                       2
<PAGE>

in the "Pink Sheets" published by the National Quotation Bureau Incorporated (or
a similar organization or agency succeeding to its functions of reporting
prices), the most recent bid price per share of the Common Stock so reported; or
(d) in all other cases, the fair market value of a share of Common Stock as
determined by an independent qualified appraiser selected in good faith and paid
for by a majority in interest of the Investors.

         "COMMON STOCK" means the common stock of the Company, $0.0001 par value
per share, and any securities into which such common stock may hereafter be
reclassified.

         "COMMON STOCK EQUIVALENTS" means any securities of the Company or a
Subsidiary thereof which entitle the holder thereof to acquire Common Stock at
any time, including without limitation, any debt, preferred stock, rights,
options, warrants or other instrument that is at any time convertible into or
exchangeable for, or otherwise entitles the holder thereof to receive, Common
Stock or other securities that entitle the holder to receive, directly or
indirectly, Common Stock.

         "COMPANY PREPAYMENT AMOUNT" means a cash payment equal to 105% of such
outstanding principal amount, plus all accrued but unpaid interest on such
Notes, through the date of payment, and the amount of any unpaid liquidated
damages and other amounts then owing (other than interest and principal) under
the Transaction Documents.

         "CONVERSION DATE" means the date a Conversion Notice together with the
Conversion Schedule is delivered to the Company in accordance with Section 5(a).

         "CONVERSION NOTICE" means a written notice in the form attached hereto
as EXHIBIT A.

         "CONVERSION PRICE" means whichever of the Initial Conversion Price or
Adjusted Conversion Price is then in effect.

         "DEFAULT" means any event or condition which constitutes an Event of
Default or that upon notice, lapse of time or both would, unless cured or
waived, become an Event of Default.

         "ELIGIBLE MARKET" means any of the New York Stock Exchange, the
American Stock Exchange, the Nasdaq National Market, the Nasdaq SmallCap Market
or the OTC Bulletin Board.

         "EQUITY CONDITIONS ARE SATISFIED" means, as of any date of
determination, that each of the following conditions is (or would be) satisfied
on such date, if the Company were to issue on such date all of the Underlying
Shares then issuable upon (1) conversion in full of the outstanding principal
amount of all Notes, and (2) the payment of accrued and unpaid interest on such
Interest Payment Date under all the Notes of the Company: (i) the number of
authorized but unissued and otherwise unreserved shares of Common Stock is
sufficient for such issuance, (ii) the Common Stock is listed or quoted (and is
not suspended from trading) on an Eligible Market and such shares of Common
Stock are approved for listing on such Eligible Market upon issuance, (iii) such
Common Stock is registered for resale under the Registration Statement and the
prospectus under such Registration Statement is available for the sale of all
Registrable Securities held by the Investor, (iv) either (A) the Company has
given the holder of the Notes ten (10) Trading Days prior notice that it intends

                                       3
<PAGE>

to pay interest by delivery of shares or (B) such issuance would be permitted in
full without violating, (x) in the case of Section 13, Section 5(b)(i) and (ii)
hereof, or (y) in all other cases, Section 5(b) hereof or the rules or
regulations of the Eligible Market on which such shares are listed or quoted,
(v) both immediately before and after giving effect thereto, no Default shall or
would exist, and (vi) no public announcement of a pending or proposed Change of
Control transaction has occurred that has not been consummated.

         "EVENT EQUITY VALUE" means the average of the Closing Prices for the
five consecutive Trading Days preceding either: (a) the date of an Event Notice
or the date the Company becomes obligated to pay the Event Price under Section
7(b), as applicable, or (b) the date on which the Event Price with respect
thereto (together with any other payments, expenses and liquidated damages then
due and payable under the Transaction Documents) is paid in full, whichever is
greater.

         "EVENT OF DEFAULT" means any one of the following events (whatever the
reason and whether it shall be voluntary or involuntary or effected by operation
of law or pursuant to any judgment, decree or order of any court, or any order,
rule or regulation of any administrative or governmental body):

                  (i) any default in the payment (free of any claim of
subordination) other than the failure to make the prepayment required under
Section 13(a), when the same becomes due and payable (whether on a Prepayment
Date, the Maturity Date or by acceleration or prepayment or otherwise), of (a)
liquidated damages in respect of this Note which default continues unremedied
for a period of three Trading Days after the date on which written notice of
such default is first given to the Company by the Investor, or (b) principal or
interest in respect of this Note.

                  (ii) the Company or any Subsidiary (1) fails to pay when due
any monetary obligation (regardless of amount) under any currently existing or
hereafter arising debenture (other than a Note) or any mortgage, credit
agreement or other facility, indenture agreement, factoring agreement or other
instrument under which there may be issued, or by which there may be secured or
evidenced, any Indebtedness or under any long term leasing or factoring
arrangement, if the aggregate amount of the obligations and liabilities of the
Company and the subsidiaries thereunder exceed $100,000 (each of the foregoing a
"MATERIAL DEBT AGREEMENT"), or (2) fails to observe or perform any other
material obligation under any Material Debt Agreement, and such failure results
in the obligations thereunder becoming or being declared due and payable prior
to the date on which they would otherwise become due and payable.

                  (iii) the Company shall sell all or substantially all of its
assets in one or a series of related transactions.

                  (iv) the Company (a) shall fail to observe or perform any
material covenant, condition or agreement contained in any Transaction Document
(other than those specified in clause (i) above or clause (vii), (ix), (x),
(xi), (xii) or (xiv) below), and (b) such failure shall (X) continue unremedied
for a period of twenty Trading Days after the date on which written notice of
such default is first given to the Company by the Investor (it being understood

                                       4
<PAGE>

that no prior notice need be given in the case of a default that cannot
reasonably be cured within seven Trading Days) and (Y) reasonably be expected to
adversely affect the ability of the Company to either pay the Notes or deliver
shares as required by the Note.

                  (v) any prepayment by the Company of any other Note or any
other Indebtedness issued by it or any issuance of securities in exchange for
any Notes issued by it (other than Underlying Shares upon conversion of such
Notes in accordance with their terms as in effect on the Original Issue Date
thereof), except in each case (i) if the Company offers to the Investor in
writing the same prepayment of this Note and all other Notes then held by such
Investor on the same economic terms on which the Company prepays or offers to
prepay (whichever is more favorable to the holder of such Note) such Notes, (ii)
in accordance with the prepayment provisions of the Security Agreement, and
(iii) in accordance with the prepayment provisions of Section 13 of this Note.

                  (vi) any of the Company's representations and warranties set
forth in the Purchase Agreement shall be incorrect in any material respect as of
the Original Issue Date.

                  (vii) the occurrence of a Bankruptcy Event.

                  (viii) any Transaction Document shall cease, for any reason,
to be in full force and effect in all material respects,

                  (ix) the Company shall assert in writing that any Transaction
Document has ceased, for any reason, to be in full force and effect or shall
disavow any of its obligations thereunder.

                  (x) the Common Stock shall not be listed or quoted, or is
suspended from trading, on an Eligible Market for a period of three Trading Days
(which need not be consecutive Trading Days).

                  (xi) the Company fails to deliver a stock certificate
evidencing Underlying Shares to an Investor within five Trading Days after a
Conversion Date or in the case of exercises under a Warrant, within five Trading
days after a Date of Exercise under, and as such term is defined in, such
Warrant, or the conversion or exercise rights of the Investors pursuant to the
terms hereof or the terms of the Warrants are otherwise suspended for any reason
(other than as a result of the limitations set forth in Section 5(b)(ii)).

                  (xii) the Company fails to have available a sufficient number
of authorized but unissued and otherwise unreserved shares of Common Stock
available to issue the Underlying Shares upon any conversion of Notes or upon
any exercise of Warrants.

                  (xiii) the Company effects or publicly announces its intention
to effect any exchange, recapitalization or other transaction the primary
purpose of which is to require or reward physical delivery of certificates
evidencing the Common Stock, unless following such transaction, the holders of
the Company's securities prior to the first such transaction continue to
beneficially own at least two-thirds of the voting rights and equity interests
in the surviving entity or acquirer of such assets.

                                       5
<PAGE>

                  (xiv) a Registration Statement under the Registration Rights
Agreement is not declared effective by the Commission by the 180th day following
the Closing Date, or is not effective as to all Registrable Securities (as
defined in the Registration Rights Agreement), and available for use by the
holders of Registrable Securities for in excess of an aggregate of 20 Trading
Days (which need not be consecutive) in any twelve month period during the
Effectiveness Period (as defined in the Registration Rights Agreement).

         "FIXED CONVERSION PRICE" means $0.80, subject to adjustment from time
to time in accordance with Section 11.

         "INDEBTEDNESS" shall have the same meaning as the term "Debt" in the
Purchase Agreement

         "INITIAL CONVERSION PRICE" means $0.80, subject to adjustment from time
to time pursuant to Section 11.

         "INTEREST PAYMENT DATE" means the Prepayment Date and each monthly
anniversary thereafter.

         "ORIGINAL ISSUE DATE" has the meaning set forth on the face of this
Note.

         "PERMITTED INDEBTEDNESS" has the meaning given such term in the
Purchase Agreement.

         "PERMITTED LIENS" has the meaning given such term in the Purchase
Agreement.

         "PREPAYMENT DATE" means March 15, 2005.

         "PROCEEDING" means an action, claim, suit, investigation or proceeding
(including, without limitation, an investigation or partial proceeding, such as
a deposition), whether commenced or threatened.

         "REGISTRATION STATEMENT" shall have the meaning set forth in the
Purchase Agreement.

         "SECURITY AGREEMENT" shall have the meaning set forth in the Purchase
Agreement.

         "TRADING DAY" means (i) a day on which the Common Stock is traded on an
Eligible Market, (ii) if the Common Stock is not quoted on the OTC Bulletin
Board, a day on which the Common Stock is quoted in the over-the-counter market
as reported by the National Quotation Bureau Incorporated (or any similar
organization or agency succeeding to its functions of reporting prices), or
(iii) in the event that the Common Stock is not listed or quoted as set forth in
(i) or (ii) hereof, a Business Day.

         "UNDERLYING SHARES" means the shares of Common Stock issuable upon
conversion of the Notes and payment of interest thereunder.

                  2. INTEREST. (a) The Company shall pay interest to the
Investor on the aggregate unconverted and then outstanding principal amount of
this Note at the rate of 8% per annum. Such interest shall accrue but not become
payable until the Prepayment Date, at which time all interest then having

                                       6
<PAGE>

accrued shall become payable. Interest shall be payable in arrears on a monthly
basis thereafter. Interest payments hereunder may be made in cash or, subject to
the conditions of Section 2(b), in shares of Common Stock. Interest shall be
calculated on the basis of a 360-day year for the actual number of days elapsed
and shall accrue daily commencing on the Original Issue Date.

                  (b) Subject to the conditions and limitations set forth below,
in lieu of paying interest in cash the Company may, at its option, on each
Interest Payment Date, pay accrued interest on this Note by delivering by the
applicable Interest Payment Date, a number of registered shares of Common Stock
equal to the quotient obtained by dividing the amount of such interest by 90% of
the Closing Price for the Trading Day immediately preceding (but not including)
such Interest Payment Date. The Company must deliver written notice to the
Investor indicating the manner in which it intends to pay interest at least ten
(10) Trading Days prior to each Interest Payment Date, but the Company may
indicate in any such notice that the election contained therein shall continue
for subsequent Interest Payment Dates until rescinded. Failure to timely provide
such written notice shall be deemed an irrevocable election by the Company to
pay such interest in cash. All interest payable in respect of the Notes on any
Interest Payment Date must be paid in the same manner. Notwithstanding the
foregoing, the Company may not pay interest in shares of Common Stock on any
Interest Payment Date unless, on the date thereof, the Equity Conditions Are
Satisfied. Investor shall have the right, but not the obligation, to add to the
principal amount of the Notes any interest not fully paid, which may be
converted at the Conversion Price.

         3. REGISTRATION OF NOTES. The Company shall register the Notes upon
records maintained by the Company for that purpose (the "NOTE REGISTER") in the
name of each record Investor thereof from time to time. The Company may deem and
treat the registered Investor of this Note as the absolute owner hereof for the
purpose of any conversion hereof or any payment of interest hereon, and for all
other purposes, absent actual notice to the contrary from such record Investor.

         4. REGISTRATION OF TRANSFERS AND EXCHANGES. The Company shall register
the transfer of any portion of this Note in the Note Register upon surrender of
this Note to the Company at its address for notice set forth herein. Upon any
such registration or transfer, a new Note, in substantially the form of this
Note (any such new debenture, a "NEW NOTE"), evidencing the portion of this Note
so transferred shall be issued to the transferee and a New Note evidencing the
remaining portion of this Note not so transferred, if any, shall be issued to
the transferring Investor. The acceptance of the New Note by the transferee
thereof shall be deemed the acceptance by such transferee of all of the rights
and obligations of a holder of a Note. The Company agrees that its prior consent
is not required for the transfer of any portion of this Note; provided, however,
that the Company shall be entitled to reasonable assurance, including an opinion
of counsel reasonably acceptable to Company, that such transfer complies with
applicable federal and state securities laws. This Note is exchangeable for an
equal aggregate principal amount of Notes of different authorized denominations,
as requested by the Investor surrendering the same. No service charge or other
fee will be imposed in connection with any such registration of transfer or
exchange.

                                       7
<PAGE>

         5. CONVERSION.

                  (a) AT THE OPTION OF THE INVESTOR. All or any portion of the
principal amount of this Note then outstanding together with any accrued and
unpaid interest hereunder shall be convertible into shares of Common Stock at
the Conversion Price (subject to limitations set forth in Section 5(b)), at the
option of the Investor, at any time and from time to time from and after the
Original Issue Date. The Investor may effect conversions under this Section
5(a), by delivering to the Company a Conversion Notice together with a schedule
in the form of SCHEDULE 1 attached hereto (the "CONVERSION Schedule"). If the
Investor is converting less than all of the principal amount represented by this
Note, or if a conversion hereunder may not be effected in full due to the
application of Section 5(b), the Company shall honor such conversion to the
extent permissible hereunder and shall promptly deliver to the Investor a
Conversion Schedule indicating the principal amount which has not been
converted.

                  (b) CERTAIN CONVERSION RESTRICTIONS.

                           (i) Notwithstanding anything to the contrary
contained herein, the number of shares of Common Stock that may be acquired by
the Investor upon conversion of the Notes (or otherwise in respect hereof) shall
be limited to the extent necessary to insure that, following such conversion (or
other issuance), the total number of shares of Common Stock then beneficially
owned by such Investor and its Affiliates and any other Persons whose beneficial
ownership of Common Stock would be aggregated with the Investor's for purposes
of Section 13(d) of the Exchange Act, does not exceed 4.999% of the total number
of issued and outstanding shares of Common Stock (including for such purpose the
shares of Common Stock issuable upon such conversion). For such purposes,
beneficial ownership shall be determined in accordance with Section 13(d) of the
Exchange Act and the rules and regulations promulgated thereunder. This
provision shall not restrict the number of shares of Common Stock which an
Investor may receive or beneficially own in order to determine the amount of
securities or other consideration that such Investor may receive in the event of
a Fundamental Transaction involving the Company as contemplated in Section 11 of
this Note. By written notice to the Company, an Investor may waive the
provisions of this Section 5(b)(i) as to itself but any such waiver will not be
effective until the 61st day after delivery thereof and such waiver shall have
no effect on any other Investor.

                           (ii) Notwithstanding anything to the contrary
contained herein, the number of shares of Common Stock that may be acquired by
an Investor upon each conversion of Notes (or otherwise in respect hereof) shall
be limited to the extent necessary to insure that, following such conversion (or
other issuance), the total number of shares of Common Stock then beneficially
owned by such Investor and its Affiliates and any other Persons whose beneficial
ownership of Common Stock would be aggregated with such Investor's for purposes
of Section 13(d) of the Exchange Act, does not exceed 9.999% of the total number
of issued and outstanding shares of Common Stock (including for such purpose the
shares of Common Stock issuable upon such conversion). For such purposes,
beneficial ownership shall be determined in accordance with Section 13(d) of the
Exchange Act and the rules and regulations promulgated thereunder. This
provision shall not restrict the number of shares of Common Stock which an
Investor may receive or beneficially own in order to determine the amount of
securities or other consideration that such Investor may receive in the event of
a Fundamental Transaction (defined below) involving the Company as contemplated
herein. This restriction may not be waived.

                                       8
<PAGE>

         6. MECHANICS OF CONVERSION.

                  (a) The number of Underlying Shares issuable upon any
conversion hereunder shall equal the outstanding principal amount of this Note
to be converted, divided by the Conversion Price on the Conversion Date, plus
(if indicated in the applicable Conversion Notice) the amount of any accrued but
unpaid interest on this Note through the Conversion Date, divided by the
Conversion Price on the Conversion Date.

                  (b) The Company shall, by the third Trading Day following each
Conversion Date, issue or cause to be issued and cause to be delivered to or
upon the written order of the Investor and in such name or names as the Investor
may designate a certificate for the Underlying Shares issuable upon such
conversion, free of restrictive legends if at such time a Registration Statement
is then effective and available for use by the Investor. The Investor, or any
Person so designated by the Investor to receive Underlying Shares, shall be
deemed to have become holder of record of such Underlying Shares as of such
Conversion Date. The Company shall use its best efforts to deliver Underlying
Shares hereunder electronically (via a DWAC) through the Depository Trust
Corporation or another established clearing corporation performing similar
functions.

                  (c) The Investor shall not be required to deliver the original
Note in order to effect a conversion hereunder except in connection with a
conversion that brings the balance to zero. Execution and delivery of the
Conversion Notice shall have the same effect as cancellation of the Note and
issuance of a New Note representing the remaining outstanding principal amount.

                  (d) The Company's obligations to issue and deliver Underlying
Shares upon conversion of this Note in accordance with the terms hereof are
absolute and unconditional, irrespective of any action or inaction by the
Investor to enforce the same, any waiver or consent with respect to any
provision hereof, the recovery of any judgment against any Person or any action
to enforce the same, or any setoff, counterclaim, recoupment, limitation or
termination, or any breach or alleged breach by the Investor or any other Person
of any obligation to the Company or any violation or alleged violation of law by
the Investor or any other Person, and irrespective of any other circumstance
which might otherwise limit such obligation of the Company to the Investor in
connection with the issuance of such Underlying Shares.

                  (e) If by the third Trading Day after a Conversion Date the
Company fails to deliver to the Investor such Underlying Shares in such amounts
and in the manner required pursuant to Section 5, then the Investor will have
the right to rescind the Conversion Notice pertaining thereto by giving written
notice to the Company prior to such Investor's receipt of such Underlying
Shares.

                  (f) The Company understands that a delay in the delivery of
Underlying Shares as required hereunder beyond the third Trading Day after a
Conversion Date would result in economic loss to the Investor. As partial
compensation to an Investor for such loss, and not as a penalty, the Company
agrees that, if it fails to deliver Underlying Shares in accordance with this
Section 6 (as adjusted in accordance with this provision) in excess of five
Trading Days after the third Trading Day after a Conversion Date, then it will

                                       9
<PAGE>

pay late payments to such Investor in accordance with the following schedule
(where "No. Trading Days Late" is defined as the number of Trading Days beyond
three Trading Days after the Conversion Date):

                          Late Payment For Each $10,000 of Principal
No. Trading Days Late     Being Converted
-----------------------------------------
1                         $100
2                         $200
3                         $300
4                         $400
5                         $500
6                         $600
7                         $700
8                         $800
9                         $900
10                        $1,000
>10                       $1,000 +$200 for each Business Day Late beyond 10 days

The Company shall pay any payments incurred under this Section 6(f) in
immediately available funds upon demand. Nothing herein shall limit the
Investor's right to pursue any other remedy for the Company's failure to issue
and deliver Underlying Shares to the Investor as required hereunder. The
liquidated damages herein provided shall survive any rescission of a conversion
under Section 6(e).

         7. EVENTS OF DEFAULT.

                  (a) At any time or times following the occurrence and during
the continuance of an Event of Default, the Investor may elect, by notice to the
Company (an "EVENT NOTICE"), to require the Company to purchase all or any
portion of the outstanding principal amount of this Note, as indicated in such
Event Notice, at a purchase price in Dollars in cash equal to the greater of:
(A) 100% of such outstanding principal amount (except that such amount shall
equal 120% in the case of an Event of Default under clause (iii) of the
definition of "Event of Default"), plus all accrued but unpaid interest thereon
and any unpaid liquidated damages and other amounts then owing to the Investor
under the Transaction Documents, through the date of purchase, or (B) the Event
Equity Value of the Underlying Shares that would be issuable upon conversion of
such principal amount and payment in Common Stock of all such accrued but unpaid
interest thereon (without regard to any condition precedent or conversion
limitation contained herein). The aggregate amount payable pursuant to the
preceding sentence is referred to as the "EVENT PRICE." The Company shall pay
the aggregate Event Price to the Investor (free of any claim of subordination)
no later than the third Trading Day following the date of delivery of the Event
Notice, and upon receipt thereof the Investor shall deliver the original Note so
repurchased to the Company.

                  (b) Upon the occurrence of any Bankruptcy Event with respect
to the Company, all outstanding principal and accrued but unpaid interest on
this Note and any unpaid liquidated damages and other amounts then owing under
the Transaction Documents shall immediately become due and payable in full in
Dollars in cash (free of any claim of subordination), without any action by the

                                       10
<PAGE>

Investor, and the Company shall immediately be obligated to repurchase this Note
held by such Investor at the Event Price pursuant to the preceding paragraph as
if the Investor had delivered an Event Notice immediately prior to the
occurrence of such Bankruptcy Event.

                  (c) In connection with any Event of Default, the Investor need
not provide and the Company hereby waives any presentment, demand, protest or
other notice of any kind (other than the Event Notice), and the Investor may
immediately enforce any and all of its rights and remedies hereunder and all
other remedies available to it under applicable law. Any such declaration may be
rescinded and annulled by the Investor at any time prior to payment hereunder.
No such rescission or annulment shall affect any subsequent Event of Default or
impair any right consequent thereto.

         8. RANKING. This Note ranks pari passu with all other Notes now or
hereafter issued pursuant to the Transaction Documents and is senior in all
respects to all existing and hereafter created unsecured Indebtedness of the
Company. The Company will not, directly or indirectly, enter into, create,
incur, assume or suffer to exist any unsecured indebtedness of any kind, on or
with respect to any of its property or assets now owned or hereafter acquired or
any interest therein or any income or profits therefrom, that is senior in any
respect to the Company's obligations under the Notes; except for Permitted
Indebtedness.

         9. CHARGES, TAXES AND EXPENSES. Issuance of certificates for Underlying
Shares upon conversion of (or otherwise in respect of) this Note shall be made
without charge to the Investor for any issue or transfer tax, withholding tax,
transfer agent fee or other incidental tax or expense in respect of the issuance
of such certificate, all of which taxes and expenses shall be paid by the
Company; provided, however, that the Company shall not be required to pay any
tax which may be payable in respect of any transfer involved in the registration
of any certificates for Underlying Shares or Notes in a name other than that of
the Investor. The Investor shall be responsible for all other tax liability that
may arise as a result of holding or transferring this Note or receiving
Underlying Shares in respect hereof.

         10. RESERVATION OF UNDERLYING SHARES. The Company covenants that it
will at all times reserve and keep available out of the aggregate of its
authorized but unissued and otherwise unreserved Common Stock, solely for the
purpose of enabling it to issue Underlying Shares as required hereunder, the
number of Underlying Shares which are then issuable and deliverable upon the
conversion of (and otherwise in respect of) this entire Note (taking into
account the adjustments of Section 11), free from preemptive rights or any other
contingent purchase rights of persons other than the Investor. The Company
covenants that all Underlying Shares so issuable and deliverable shall, upon
issuance in accordance with the terms hereof, be duly and validly authorized,
issued and fully paid and nonassessable.

         11. CERTAIN ADJUSTMENTS. The Conversion Price is subject to adjustment
from time to time as set forth in this Section 11.

                  (a) STOCK DIVIDENDS AND SPLITS. If the Company, at any time
while this Note is outstanding: (i) pays a stock dividend on its Common Stock or
otherwise makes a distribution on any class of capital stock that is payable in
shares of Common Stock, (ii) subdivides outstanding shares of Common Stock into

                                       11
<PAGE>

a larger number of shares, or (iii) combines outstanding shares of Common Stock
into a smaller number of shares, then in each such case the Fixed Conversion
Price shall be multiplied by a fraction of which the numerator shall be the
number of shares of Common Stock outstanding immediately before such event and
of which the denominator shall be the number of shares of Common Stock
outstanding immediately after such event. Any adjustment made pursuant to clause
(i) of this paragraph shall become effective immediately after the record date
for the determination of shareholders entitled to receive such dividend or
distribution, and any adjustment pursuant to clause (ii) or (iii) of this
paragraph shall become effective immediately after the effective date of such
subdivision or combination.

                  (b) PRO RATA DISTRIBUTIONS. If the Company, at any time while
this Note is outstanding, distributes to all holders of Common Stock (i)
evidences of its indebtedness, (ii) any security (other than a distribution of
Common Stock covered by the preceding paragraph), (iii) rights or warrants to
subscribe for or purchase any security, or (iv) any other asset (in each case,
"DISTRIBUTED PROPERTY"), then, at the request of the Investor delivered before
the 90th day after the record date fixed for determination of shareholders
entitled to receive such distribution, the Company will deliver to the Investor,
within five Trading Days after such request (or, if later, on the effective date
of such distribution), the Distributed Property that the Investor would have
been entitled to receive in respect of the Underlying Shares for which this Note
could have been converted immediately prior to such record date. If such
Distributed Property is not delivered to the Investor pursuant to the preceding
sentence, then upon any conversion of this Note that occurs after such record
date, the Investor shall be entitled to receive, in addition to the Underlying
Shares otherwise issuable upon such conversion, the Distributed Property that
the Investor would have been entitled to receive in respect of such number of
Underlying Shares had the Investor been the record holder of such Underlying
Shares immediately prior to such record date. Notwithstanding the foregoing,
this Section 11(b) shall not apply to any distribution of rights or securities
in respect of adoption by the Company of a shareholder rights plan, which events
shall be covered by Section 11(a).

                  (c) FUNDAMENTAL TRANSACTIONS. If, at any time while this Note
is outstanding, (i) the Company effects any merger or consolidation of the
Company with or into another Person in which the Company is not the surviving
entity, (ii) the Company effects any sale of all or substantially all of its
assets in one or a series of related transactions, (iii) any tender offer or
exchange offer (whether by the Company or another Person) is completed pursuant
to which holders of Common Stock tender or exchange their shares for other
securities, cash or property, or (iv) the Company effects any reclassification
of the Common Stock or any compulsory share exchange pursuant to which the
Common Stock is effectively converted into or exchanged for other securities,
cash or property (other than as a result of a subdivision or combination of
shares of Common Stock covered by Section 11(a) above) (in any such case, a
"FUNDAMENTAL TRANSACTION"), then upon any subsequent conversion of this Note,
the Investor shall have the right to: (x) declare an Event of Default pursuant
to clause (iii) thereunder, (y) receive, for each Underlying Share that would
have been issuable upon such conversion absent such Fundamental Transaction, the
same kind and amount of securities, cash or property as it would have been
entitled to receive upon the occurrence of such Fundamental Transaction if it
had been, immediately prior to such Fundamental Transaction, the holder of one
share of Common Stock (the "ALTERNATE CONSIDERATION") or (z) require the
surviving entity to issue to the Investor an instrument identical to this Note

                                       12
<PAGE>

(with appropriate adjustments to the conversion price). For purposes of any such
conversion, the Company shall apportion the Conversion Price among the Alternate
Consideration in a reasonable manner reflecting the relative value of any
different components of the Alternate Consideration. If holders of Common Stock
are given any choice as to the securities, cash or property to be received in a
Fundamental Transaction, then the Investor shall be given the same choice as to
the Alternate Consideration it receives upon any conversion of this Note
following such Fundamental Transaction. To the extent necessary to effectuate
the foregoing provisions, any successor to the Company or surviving entity in
such Fundamental Transaction (or, if different, the ultimate parent of such
successor or entity or the entity issuing the Alternate Consideration) shall
issue to the Investor a new debenture consistent with the foregoing provisions
and evidencing the Investor's right to convert such debenture into Alternate
Consideration. The terms of any agreement pursuant to which a Fundamental
Transaction is effected shall include terms requiring any such successor or
surviving entity to comply with the provisions of this paragraph (c) and
insuring that this Note (or any such replacement security) will be similarly
adjusted upon any subsequent transaction analogous to a Fundamental Transaction.

                  (d) SUBSEQUENT EQUITY SALES. If the Company or any subsidiary
thereof, as applicable, at any time while this Note is outstanding, shall issue
shares of Common Stock or Common Stock Equivalents entitling any Person to
acquire shares of Common Stock, at a price per share less than either the
Initial Conversion Price or the Fixed Conversion Price (the "ADDITIONAL SHARES
PRICE") (if the holder of the Common Stock or Common Stock Equivalent so issued
may, whether by operation of purchase price adjustments, reset provisions,
floating conversion, exercise or exchange prices or otherwise, becomes entitled
to receive shares of Common Stock at a price less than the Initial Conversion
Price or Fixed Conversion Price, but such price is not fixed at the time of
issuance, such issuance shall be deemed to occur (i) in the case of purchase
price adjustments and reset provisions, at the time, if any, that such
adjustment or reset occurs, or (ii) in the case of conversion, exercise or
exchange prices, the date of such conversion, exercise or exchange), then, the
Initial Conversion Price and Fixed Conversion Price shall each be reduced to
equal the Additional Shares Price. Notwithstanding anything to the contrary set
forth herein, the Conversion Price shall never be increased as a result of the
Additional Shares Price. Such adjustment shall be made whenever such Common
Stock or Common Stock Equivalents are issued; PROVIDED, however, that no
adjustment shall be made pursuant to this Section 11(d) as a result of the
conversion, exercise or exchange, as the case may be, of Common Stock
Equivalents outstanding on the date hereof (but will apply to any amendments,
resets, modifications, and reissuances thereof (other than those, if any,
resulting from the issuance of the Notes or the transactions contemplated by the
issuance of the Notes) and as a result of any changes, resets or adjustments to
a conversion, exercise or exchange price thereunder whether or not as a result
of any amendment, modification or reissuance (other than those, if any,
resulting from the issuance of the Notes or the transactions contemplated by the
issuance of the Notes)), upon the issuance of Common Stock or Common Stock
Equivalents to employees or consultants of the Company as compensation upon
approval of the Board of Directors of the Company, or upon the issuance of
Common Stock pursuant to any agreements or other obligations in existence on the
date hereof (including those set forth in the Transaction Documents) (but will
apply to any amendments, resets, modifications, and reissuances thereof and as a
result of any changes, resets or adjustments to a conversion, exercise or
exchange price thereunder whether or not as a result of any amendment,
modification or reissuance). The Company shall notify the Investor in writing,
no later than the Trading Day following the issuance of any Common Stock or

                                       13
<PAGE>

Common Stock Equivalent subject to this section, indicating therein the
applicable issuance price, or applicable reset price, exchange price, conversion
price and other pricing terms.

                  (e) RECLASSIFICATIONS; SHARE EXCHANGES. In case of any
reclassification of the Common Stock, or any compulsory share exchange pursuant
to which the Common Stock is converted into other securities, cash or property
(other than compulsory share exchanges which constitute Change of Control
transactions), the Investors of the Notes then outstanding shall have the right
thereafter to convert such shares only into the shares of stock and other
securities, cash and property receivable upon or deemed to be held by holders of
Common Stock following such reclassification or share exchange, and the
Investors shall be entitled upon such event to receive such amount of
securities, cash or property as a holder of the number of shares of Common Stock
of the Company into which such shares of Notes could have been converted
immediately prior to such reclassification or share exchange would have been
entitled. This provision shall similarly apply to successive reclassifications
or share exchanges.

                  (f) CALCULATIONS. All calculations under this Section 11 shall
be made to the nearest cent or the nearest 1/100th of a share, as applicable.
The number of shares of Common Stock outstanding at any given time shall not
include shares owned or held by or for the account of the Company, and the
disposition of any such shares shall be considered an issue or sale of Common
Stock.

                  (g) NOTICE OF ADJUSTMENTS. Upon the occurrence of each
adjustment pursuant to this Section 11, the Company at its expense will promptly
compute such adjustment in accordance with the terms hereof and prepare a
certificate describing in reasonable detail such adjustment and the transactions
giving rise thereto, including all facts upon which such adjustment is based.
Upon written request, the Company will promptly deliver a copy of each such
certificate to the Investor.

                  (h) NOTICE OF CORPORATE EVENTS. If the Company (i) declares a
dividend or any other distribution of cash, securities or other property in
respect of its Common Stock, including without limitation any granting of rights
or warrants to subscribe for or purchase any capital stock of the Company or any
subsidiary, (ii) authorizes and publicly approves, or enters into any agreement
contemplating or solicits shareholder approval for any Fundamental Transaction
or (iii) publicly authorizes the voluntary dissolution, liquidation or winding
up of the affairs of the Company, then the Company shall deliver to the Investor
a notice describing the material terms and conditions of such transaction, at
least 20 calendar days prior to the applicable record or effective date on which
a Person would need to hold Common Stock in order to participate in or vote with
respect to such transaction, and the Company will take all steps reasonably
necessary in order to insure that the Investor is given the practical
opportunity to convert this Note prior to such time so as to participate in or
vote with respect to such transaction; provided, however, that the failure to
deliver such notice or any defect therein shall not affect the validity of the
corporate action required to be described in such notice.

         12. FRACTIONAL SHARES. The Company shall not be required to issue or
cause to be issued fractional Underlying Shares on conversion of this Note. If
any fraction of an Underlying Share would, except for the provisions of this
Section, be issuable upon conversion of this Note or payment of interest hereon,
the number of Underlying Shares to be issued will be rounded up to the nearest
whole share.

                                       14
<PAGE>

         13. PREPAYMENT.

                  (a) PREPAYMENT OBLIGATION OF THE COMPANY. The Company shall
prepay $4,000,000 of the Notes plus all accrued and unpaid interest and other
amounts, including liquidated damages, by the Prepayment Date, PROVIDED THAT,
such prepayment may only be made out of retained earnings. In the event the
Investor does not receive such prepayment amount by the Prepayment Date, then
the Conversion Price shall automatically become the Adjusted Conversion Price
and not the Initial Conversion Price.

                  (b) PREPAYMENT AT OPTION OF COMPANY. Subject to the provisions
of this Section and upon at least sixty (60) days' prior notice, the Company may
deliver a written notice (such notice, a "PREPAYMENT NOTICE") to the Investor
stating its irrevocable undertaking to redeem, at any time on or after the
Prepayment Date, at the applicable Company Prepayment Amount all or part of the
outstanding principal amount of all Notes held by such Investor, together with
accrued and unpaid interest on such outstanding principal amount, liquidated
damages and other amounts then owing thereon through the Prepayment Date,
PROVIDED however, that: (i) there shall not exist any Event of Default, and (ii)
the Equity Conditions Are Satisfied as to all Underlying Shares. If the
conditions for delivery of a Prepayment Notice set forth in clauses (i) and (ii)
above are satisfied during the period from the date of the Prepayment Notice
through and including the Prepayment Date, then the Company shall deliver to the
Investor the full applicable Company Prepayment Amount in cash on the 61st day
following the date of the Prepayment Notice (the "COMPANY PREPAYMENT DATE"),
subject to (i) reduction for principal and interest of the Investor's Notes that
shall have been converted between the date of the Prepayment Notice and the
Company Prepayment Date, (ii) the right of the Investor to nullify such
Prepayment Notice if any of such conditions shall not have been met from the
date of the Prepayment Notice through the Company Prepayment Date or if the
Company shall during such period fail to honor any Conversion Notice as
contemplated in the immediately following sentence, and (iii) the operation of
the automatic amendment to such Prepayment Notice in accordance with this
Section. The Company covenants and agrees that it will honor all Conversion
Notices tendered from the time of delivery of the Prepayment Notice through 6:30
p.m. (New York City time) on the Trading Day prior to the Company Prepayment
Date. In addition, if any portion of the Company Prepayment Amount remains
unpaid after the Company Prepayment Date, the Investor subject to such
prepayment may elect by written notice to the Company to invalidate AB INITIO
the Prepayment Notice with respect to the unpaid amount, notwithstanding
anything herein contained to the contrary. If the Investor makes such an
election, this Note shall be reinstated with respect to such unpaid amount and
the Company shall no longer have any prepayment rights under this Section.

         14. NOTICES. Any and all notices or other communications or deliveries
hereunder (including without limitation any Conversion Notice) shall be in
writing and shall be deemed given and effective on the earliest of (i) the date
of transmission, if such notice or communication is delivered via facsimile at
the facsimile number specified in this Section prior to 6:30 p.m. (New York City
time) on a Trading Day, (ii) the next Trading Day after the date of
transmission, if such notice or communication is delivered via facsimile at the

                                       15
<PAGE>

facsimile number specified in this Section on a day that is not a Trading Day or
later than 6:30 p.m. (New York City time) on any Trading Day, (iii) the Trading
Day following the date of mailing, if sent by nationally recognized overnight
courier service, or (iv) upon actual receipt by the party to whom such notice is
required to be given. The addresses for such communications shall be: (i) if to
the Company, to 54 Danbury Road, #207, Ridgefield, CT 06877, facsimile: (203)
286-1608, attention Chief Financial Officer, (ii) if to the Investor, to the
address or facsimile number appearing on the Company's shareholder records or
such other address or facsimile number as the Investor may provide to the
Company in accordance with this Section.

         15. MISCELLANEOUS.

                  (a) This Note shall be binding on and inure to the benefit of
the parties hereto and their respective successors and assigns.

                  (b) Subject to Section 15(a), above, nothing in this Note
shall be construed to give to any person or corporation other than the Company
and the Investor any legal or equitable right, remedy or cause under this Note.
This Note shall inure to the sole and exclusive benefit of the Company and the
Investor.

                  (c) All questions concerning the construction, validity,
enforcement and interpretation of this Note shall be governed by and construed
and enforced in accordance with the internal laws of the State of New York,
without regard to the principles of conflicts of law thereof. Each party agrees
that all Proceedings shall be commenced exclusively in the state and federal
courts sitting in the City of New York, Borough of Manhattan (the "NEW YORK
COURTS"). Each party hereto hereby irrevocably submits to the exclusive
jurisdiction of the New York Courts for any Proceeding, and hereby irrevocably
waives, and agrees not to assert in any Proceeding, any claim that it is not
personally subject to the jurisdiction of any New York Court or that a New York
Court is an inconvenient forum for such Proceeding. Each party hereto hereby
irrevocably waives personal service of process and consents to process being
served in any such Proceeding by mailing a copy thereof via registered or
certified mail or overnight delivery (with evidence of delivery) to such party
at the address in effect for notices to it under this Note and agrees that such
service shall constitute good and sufficient service of process and notice
thereof. Nothing contained herein shall be deemed to limit in any way any right
to serve process in any manner permitted by law. Each party hereto hereby
irrevocably waives, to the fullest extent permitted by applicable law, any and
all right to trial by jury in any legal Proceeding. The prevailing party in a
Proceeding shall be reimbursed by the other party for its reasonable attorneys'
fees and other costs and expenses incurred with the investigation, preparation
and prosecution of such Proceeding.

                  (d) The headings herein are for convenience only, do not
constitute a part of this Note and shall not be deemed to limit or affect any of
the provisions hereof.

                  (e) In case any one or more of the provisions of this Note
shall be invalid or unenforceable in any respect, the validity and
enforceability of the remaining terms and provisions of this Note shall not in
any way be affected or impaired thereby and the parties will attempt in good
faith to agree upon a valid and enforceable provision which shall be a
commercially reasonable substitute therefor, and upon so agreeing, shall
incorporate such substitute provision in this Note.

                                       16
<PAGE>

                  (f) No provision of this Note may be waived or amended except
(i) in accordance with the requirements set forth in the Purchase Agreement, and
(ii) in a written instrument signed, in the case of an amendment, by the Company
and the Investor or, in the case of a waiver, by the party against whom
enforcement of any such waiver is sought. No waiver of any default with respect
to any provision, condition or requirement of this Note shall be deemed to be a
continuing waiver in the future or a waiver of any subsequent default or a
waiver of any other provision, condition or requirement hereof, nor shall any
delay or omission of either party to exercise any right hereunder in any manner
impair the exercise of any such right.

                  (g) To the extent it may lawfully do so, the Company hereby
agrees not to insist upon or plead or in any manner whatsoever claim, and will
resist any and all efforts to be compelled to take the benefit or advantage of,
usury laws wherever enacted, now or at any time hereafter in force, in
connection with any claim, action or Proceeding that may be brought by any
Investor in order to enforce any right or remedy under the Notes.
Notwithstanding any provision to the contrary contained in the Notes, it is
expressly agreed and provided that the total liability of the Company under the
Notes for payments in the nature of interest shall not exceed the maximum lawful
rate authorized under applicable law (the "MAXIMUM RATE"), and, without limiting
the foregoing, in no event shall any rate of interest or default interest, or
both of them, when aggregated with any other sums in the nature of interest that
the Company may be obligated to pay under the Notes exceed such Maximum Rate. It
is agreed that if the maximum contract rate of interest allowed by law and
applicable to the Notes is increased or decreased by statute or any official
governmental action subsequent to the date hereof, the new maximum contract rate
of interest allowed by law will be the Maximum Rate of interest applicable to
the Notes from the effective date forward, unless such application is precluded
by applicable law. If under any circumstances whatsoever, interest in excess of
the Maximum Rate is paid by the Company to any Investor with respect to
indebtedness evidenced by the Notes, such excess shall be applied by such
Investor to the unpaid principal balance of any such indebtedness or be refunded
to the Company, the manner of handling such excess to be at such Investor's
election.

                  (h) The obligations under this Note are secured pursuant to
the Security Agreement.

                                       17
<PAGE>

         IN WITNESS WHEREOF, the Company has caused this Note to be duly
executed by a duly authorized officer as of the date first above indicated.

                                           MARKLAND TECHNOLOGIES, INC.

                                           By: _________________________________
                                               Name:
                                               Title:

                                       18
<PAGE>

                                    EXHIBIT A

                                CONVERSION NOTICE

(To be Executed by the Registered Investor
in order to convert Notes)

         The undersigned hereby elects to convert the principal amount of Note
indicated below, into shares of Common Stock of Markland Technologies, Inc., as
of the date written below. If shares are to be issued in the name of a Person
other than undersigned, the undersigned will pay all transfer taxes payable with
respect thereto and is delivering herewith such certificates and opinions as
reasonably requested by the Company in accordance therewith. No fee will be
charged to the Investor for any conversion, except for such transfer taxes, if
any. All terms used in this notice shall have the meanings set forth in the
Note.

Conversion calculations:_______________________________________________________
                        Date to Effect Conversion

                        _______________________________________________________
                        Principal amount of Note owned prior to conversion

                        _______________________________________________________
                        Principal amount of Note to be Converted

                        _______________________________________________________
                        Principal amount of Note remaining after Conversion

                        _______________________________________________________
                        DTC Account

                        _______________________________________________________
                        Number of shares of Common Stock to be Issued

                        _______________________________________________________
                        Applicable Conversion Price

                        _______________________________________________________
                        Name of Investor

                        By: ___________________________________________________
                            Name:
                            Title:

                                       19
<PAGE>

         By the delivery of this Conversion Notice the Investor represents and
warrants to the Company that its ownership of the Common Stock does not exceed
the restrictions set forth in Section 5(b) of the Note.

                                       20
<PAGE>

<TABLE>
<S>  <C>
                                                SCHEDULE 1

                                       Markland Technologies, Inc.
                                   Secured 8% Convertible Notes due [ ]

                                           CONVERSION SCHEDULE

         This Conversion Schedule reflects conversions made under the above referenced Notes.

                                                  Dated:
--------------------- -------------------------- --------------------- ---------------------------------
Date of Conversion      Amount of Conversion     Aggregate Principal     Applicable Conversion Price
                                                   Amount Remaining
                                                    Subsequent to
                                                      Conversion
--------------------- -------------------------- --------------------- ---------------------------------

--------------------- -------------------------- --------------------- ---------------------------------

--------------------- -------------------------- --------------------- ---------------------------------

--------------------- -------------------------- --------------------- ---------------------------------

--------------------- -------------------------- --------------------- ---------------------------------

--------------------- -------------------------- --------------------- ---------------------------------

--------------------- -------------------------- --------------------- ---------------------------------

--------------------- -------------------------- --------------------- ---------------------------------

--------------------- -------------------------- --------------------- ---------------------------------

--------------------- -------------------------- --------------------- ---------------------------------

--------------------- -------------------------- --------------------- ---------------------------------

--------------------- -------------------------- --------------------- ---------------------------------

--------------------- -------------------------- --------------------- ---------------------------------

--------------------- -------------------------- --------------------- ---------------------------------

--------------------- -------------------------- --------------------- ---------------------------------

--------------------- -------------------------- --------------------- ---------------------------------

                                                   21
</TABLE>

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