Document:

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                                  EXHIBIT 10.5

                             NOTE PURCHASE AGREEMENT

         This Agreement, dated as of April 25, 2001, by and between
INTERSYSTEMS, INC., a Delaware corporation (the "Company"), and Coast Capital
Partners, LLC., a New Jersey limited liability company.

                                    RECITALS

         Subject to the terms and conditions set forth in this Agreement, the
Company desires to issue and sell to the Purchaser and Purchaser desires to
purchase from the Company, $750,000 principal amount of the Company's Series A
11% convertible senior subordinated secured notes due March 31, 2006 (the
"Series A 11% Convertible Notes") and $250,000 principal amount of the Company's
Series A 13% convertible senior subordinated secured notes due March 31, 2006
(the "Series A 13% Convertible Notes;" collectively, the Series A 11%
Convertible Notes and the Series A 13% Convertible Notes are referred to as the
"Notes").

         In consideration of the mutual covenants contained herein, the parties
agree as follows:

         1. Sales and Purchase of Notes. Subject to the terms and conditions set
forth herein, the Company shall issue and sell to Purchaser, and the Purchaser
shall purchase from the Company, $750,000 principal amount of Series A 11%
Convertible Notes and $250,000 principal amount of Series A 13% Convertible
Notes. The Series A 11% Convertible Notes and the Series A 13% Convertible
Notes, shall be substantially in the forms annexed hereto as Exhibits A and B,
respectively, and the original price that the Series A 11% Convertible Notes and
Series A 13% Convertible Notes may be converted into shares of the Company's
common stock, $.01 par value per share ("Common Stock"), shall be determined in
accordance with the formula and provisions set forth in Exhibits A and B,
respectively.

         2. The Closing.

         (a) The closing of the purchase and sale of the Notes (the "Closing")
shall take place at the offices of Purchaser on April 16, 2001, which may be
extended by Purchaser, but in any event to no later than April 30, 2001 without
the consent of the Company. The date of the Closing is hereinafter referred to
as the "Closing Date."

         (b) At the Closing, the parties shall deliver or shall cause to be
delivered the following: (i) the Company shall deliver to the Purchaser (1) a
Series A 11% Convertible Note in the principal amount of $750,000 (or Series A
11% Convertible Notes in the aggregate principal amount of $750,000) and a
Series A 13% Convertible Note in the principal amount of $250,000 (or Series A

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13% Convertible Notes in the aggregate principal amount of $250,000), registered
in the name of Purchaser or in such names as Purchaser may specify by written
notice to the Company at least two full business days prior to the Closing Date,
(2) all other documents, instruments and writings required to have been
delivered at or prior to the Closing Date by the Company pursuant to this
Agreement, including: employment agreements, executed by each party thereto,
with each of Herbert M. Pearlman ("HMP") and David S. Lawi ("DSL"),
substantially in the forms of Exhibits C and D, respectively (collectively, the
"Employment Agreements"), which employment agreements shall provide for, among
other things, the resignations of HMP and DSL as officers of the Company; a
Stockholders Agreement among the Company, Helm Capital Group, Inc., Helm
Ventures, Inc., HMP, DSL and Purchaser, substantially in the form of Exhibit E
(the "Stockholders Agreement"), which Stockholders Agreement shall provide for,
among other things, the resignations of HMP and DSL from the Company's Board of
Directors; (collectively, this Agreement, the Notes, the Employment Agreements
and the Stockholders Agreement are referred to as the "Transaction Documents");
evidence, reasonably acceptable to Purchaser, that the then maximum number of
shares of Common Stock issuable upon conversion of the Notes has been listed for
issuance on the American Stock Exchange (the "AMEX") or any other market where
the Company's Common Stock is traded; and (ii) Purchaser shall deliver to the
Company (1) $1,000,000 in United States dollars in immediately available funds
by wire transfer to an account designated in writing by the Company for such
purpose prior to the Closing Date and (2) all other documents, instruments and
writings required to have been delivered at or prior to the Closing Date by the
Purchaser pursuant to this Agreement, including the Stockholders Agreement. In
addition to the preceding payments, documents and instruments that are to be
delivered at the Closing, the Company shall cause two nominees of Purchaser to
be appointed to the Company's Board of Directors to fill the vacancies created
by HMP's and DSL'S resignations.

         3. Agreement regarding Annual Meeting to Elect Directors. The Company
agrees that as soon as reasonably practicable, and in any event no later than
September 15, 2001 (the "Cutoff Date"), the Company will (i) cause a meeting of
the Company's shareholders to be held for the purpose of electing the Company's
directors, among other things that might be on the agenda, and (ii) the Company
will include among the nominees for directors that are submitted to shareholders
by the Company for election at said meeting, such number of Purchaser's nominees
that when combined with Purchaser's nominees who are already members of the
Company's Board of Directors and whose positions are not up for election (and
concomitantly such directors will be continuing to be members of the Company's
Board of Directors after the election), will constitute a majority of the
Company's directors immediately after the election (the date on which
Purchaser's nominees constitute a majority of the Company's directors is
referred to as the "Control Date"). The Company agrees to use its best efforts
to obtain the election of the Purchaser's nominees so that immediately after
said election a majority of the Company's directors are nominees of the
Purchaser. The Company covenants that a majority of the Company's directors will
be nominees of Purchaser by no later than the Cutoff Date, and it is understood
and agreed by the Company that the failure of the Company's Board of Directors
to

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be so constituted by such date will be a material breach of this agreement, and
an "Event of Default" (as such term is defined in the Notes) under the Notes.

         4.Agreement regarding the Conduct of the Company until the Control
Date. The Company covenants and agrees that until the Control Date, without the
prior written consent of Purchaser, the Company's business will be conducted
only in the ordinary course of business consistent with past practice. Without
limitation of the foregoing, without such consent, the Company shall:

         (a) use its best efforts to maintain and preserve the physical assets
of the Company;

         (b) use its best efforts to maintain all contracts and the relations
and goodwill of employees, suppliers, lessees and others having business
relations with the Company;

         (c) use its best effort to maintain in full force and effect all
licenses, permits, rights and other authorizations used in the conduct of the
Company's business;

         (d) use its best efforts to prevent any of the Company's assets from
being subjected to any lease, contract of sale, assignment, mortgage, pledge,
lien, charge or encumbrance, except in the ordinary course of business;

         (e) (i) not to increase the amount of compensation paid to any of the
Company's employees or of any of its subsidiaries; (ii) not to pay or agree to
pay any pension, retirement allowance, collective bargaining agreement or
arrangement, to any such employee, whether past or present; and (iii) not to
commit itself to any new or renewed pension, profit-sharing, bonus, incentive,
commission, deferred compensation, stock purchase, stock option, stock
appreciation right, group insurance, retirement or other employee benefit plan,
agreement or arrangement, or to any extension thereof), with or for the benefit
of any person, or to amend or terminate any such plans or any such agreements in
existence on the date thereof; and (iv) not to enter into or renew any
collective bargaining agreements or any other employment contracts, agreements,
commitments, or arrangements which cannot be terminated at will by the Company
without penalty or recognize any new union or collective bargaining agent with
respect to any employee of the Company or of its subsidiaries;

         (f) not to prepay any obligation having a maturity of more than 90 days
from the date it was issued and incurred;

         (g) not to enter into any agreement or commitment that restricts the
Company or any of its subsidiaries from carrying on any business in the world;

         (h) not to cancel any debts or waive any claims or rights of
substantial value;

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         (j) not to enter into any loan agreements or other credit facilities
for the Company's or any of its subsidiary's benefit (except loans by the
Company to a subsidiary or vice versa), or issue any securities whatsoever;

         (k) loan money to any other party, except loans by the Company to a
subsidiary or vice versa;

         (m) sell, license or otherwise dispose of any assets of the Company;

         (n) incur capital expenditures in excess of $50,000;

         (o) not enter into any agreement that cannot be cancelled on 60 days
notice or less;

         (p) not to agree or otherwise commit, whether in writing or otherwise,
to take any of the actions prohibited by this Section 4.

         5. Representations and Warranties of the Company. The Company
represents, warrants and agrees as follows:

         (a) Organization and Qualification. The Company is a corporation, duly
incorporated, validly existing and in good standing under the laws of the State
of Delaware, with the requisite corporate power and authority to own and use its
properties and assets and to carry on its business as currently conducted. Each
of the Company and its subsidiaries is duly qualified to do business and is in
good standing as a foreign corporation in each jurisdiction in which the nature
of the business conducted or property owned by it makes such qualification
necessary, except where the failure to be so qualified or in good standing, as
the case may be, could not, individually or in the aggregate, (x) adversely
affect the legality, validity or enforceability of this Agreement, the Notes or
the shares (the "Underlying Shares") of Common Stock issuable upon conversion
thereof (the Notes together with the Underlying Shares are referred to
collectively as the "Securities"), (y) have or result in a material adverse
effect on the results of operations, assets, prospects, or condition (financial
or otherwise) of the Company and its subsidiaries, taken as a whole, or (z)
adversely impair the Company's ability to perform fully on a timely basis its
obligations under the Transaction Documents.

         (b) Corporate Action. The Company has the requisite corporate power and
authority to enter into and to consummate the transactions contemplated by each
of the Transaction Documents, and otherwise to carry out its obligations
thereunder. The execution and delivery of each of the Transaction Documents by
the Company and the consummation by it of the transactions contemplated thereby
have been duly authorized by all necessary action on the part of the Company and
no further action is required by the Company. Each of the Transaction Documents
has been duly executed by the Company and, when delivered in accordance with the
terms hereof, will constitute the valid and binding obligation of the Company
enforceable against the Company in accordance with its terms.

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         (c) Beneficial Ownership. To the knowledge of the Company, except as
specifically disclosed in the Disclosure Documents (as defined below) or as may
otherwise result from the execution and performance of the Transaction
Documents, no person or group of related Persons beneficially owns (as
determined pursuant to Rule 13d-3 promulgated under the Securities Exchange Act
of 1934, as amended) or has the right to acquire by agreement with or by
obligation binding upon the Company beneficial ownership of in excess of 5% of
the Common Stock. A "Person" means an individual or corporation, partnership,
trust, incorporated or unincorporated association, joint venture, limited
liability company, joint stock company, government (or an agency or subdivision
thereof) or other entity of any kind.

         (d) Issuance of Underlying Shares. The Notes and the Underlying Shares
are duly authorized, and, when issued and paid for in accordance with the terms
hereof and the Notes, as applicable, shall have been validly issued, fully paid
and nonassessable, free and clear of all liens, encumbrances, and rights of
first refusal of any kind (collectively, "Liens"). No shares of Common Stock are
entitled to preemptive or similar rights, nor is any holder of Common Stock
entitled to preemptive or similar rights arising out of any agreement or
understanding with the Company by virtue of any of the Transaction Documents.
The Company has on the date hereof and will, at the Closing Date and at all time
while the Notes are outstanding, maintain an adequate reserve of duly reserved
shares of Common Stock, reserved for issuance to holders of Notes, to enable it
to perform its conversion and other obligations under the Transaction Documents.

         (e) Consents and Approvals. The Company is not required to obtain to
obtain the consent, waiver, approval, authorization or order of, give any notice
to, or make any filing or registration with, any court or other Federal, state,
local or other governmental authority or other Person in connection with the
execution, delivery and performance by the Company of the Transaction Documents,
other than (i) as have been made (in the case of filings and registrations) or
obtained (in the case of consents, waivers, orders, approvals or
authorizations), (ii) the filing of a registration statement with the Securities
and Exchange Commission (the "Commission") as contemplated in Section 6, (iii)
the application(s) to the AMEX for the listing of the Underlying Shares with the
AMEX (and with any other national securities exchange or market on which the
Common Stock is then listed), (iv) the filing of a Form D with the Commission,
and (v) in all other cases where the failure to obtain such consent, waiver,
authorization or order, or to give such notice or make such filing or
registration could not have or result in, individually or in the aggregate, a
material adverse effect to the Company.

         (f) No Conflicts. The execution, delivery and performance of the
Transaction Documents by the Company and the consummation by the Company of the
transactions contemplated thereby do not and will not (i) conflict with or
violate any provision of its certificate of incorporation, bylaws or other
charter documents (each as amended through the date hereof), or (ii) conflict
with, or constitute a default (or an event which with notice or lapse of time or
both would become a default) under, or give to others any rights of termination,
amendment, acceleration or cancellation of, any agreement, credit facility,
indenture or instrument (evidencing a Company debt or otherwise) to which the
Company or any of its subsidiaries is a party or by which any

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property or asset of the Company or any of its subsidiaries is bound or
affected, or (iii) result in a violation of any law, rule, regulation, order,
judgment, injunction, decree or other restriction of any court or governmental
authority to which the Company is subject (including Federal and state
securities laws and regulations), or by which any property or asset of the
Company is bound or affected, except in the case of each of clauses (i) and
(iii), as could not, individually or in the aggregate, have or result in a
material adverse effect on the Company. The business of the Company is not being
conducted in violation of any law, ordinance or regulation of any governmental
authority, except for violations which, individually or in the aggregate, could
not have or result in a material adverse effect on the Company.

         (g) No Default or Violation. Neither the Company nor any of its
subsidiaries received notice of a claim that it is in default under or that it
is in violation of, any indenture, loan or credit agreement or any other
agreement or instrument to which it is a party or by which it or any of its
properties is bound, (ii) is in violation of any order of any court, arbitrator
or governmental body, or (iii) is in violation of any statute, rule or
regulation of any governmental authority, except as could not individually or in
the aggregate, have or result in a material adverse effect.

         (h) Disclosure Documents. In connection with the offering and sale of
the Securities, the Company has previously delivered to Purchaser those
documents listed in Schedule A ("Disclosure Documents"). The Disclosure
Documents taken as a whole do not include any untrue statement of material fact
or omit to state any material fact necessary to make the statements therein not
misleading.

         6. Representations and Warranties of Purchaser. The Purchaser hereby
represents and warrants to the Company as follows:

         (a) Organization; Authority. The Purchaser is a limited liability
company duly organized, validly existing and in good standing under the laws of
the jurisdiction of its organization with the requisite power and authority, to
enter into and to consummate the transactions contemplated by the Transaction
Documents and otherwise to carry out its obligations thereunder. The purchase by
the Purchaser of the Notes hereunder has been duly authorized by all necessary
action on the part of the Purchaser. Each of this Agreement and the Stockholders
Agreement has been duly executed and delivered by the Purchaser and constitutes
the valid and legally binding obligation of the Purchaser, enforceable against
it in accordance with its terms.

         (b) Accredited Investor. As of the date hereof, Purchaser is an
"accredited investor," as that term is defined in Rule 501(a) under the
Securities Act of 1933, as amended (the "1933 Act").

         (c) Non-Registration of Securities and Restrictions on Transferability.
Purchaser is aware that (i) the Securities have not been registered under the
1933 Act or the securities laws of any state, and this Agreement has not been
qualified under the Trust Indenture Act of 1939, as amended (the "1939 Act"), in
reliance upon exceptions contained in the 1933 Act and the 1939

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Act nor will the Notes otherwise be issued pursuant to an indenture; (ii) the
Securities are subject to significant restrictions on transfer, as set forth in
this Agreement and the Securities, (iii) there is no public trading market for
the Notes and there is no reason to expect that any such market will exist at
any time in the future; (iv) while the Common Stock is currently traded on the
AMEX, there is no assurance that an active trading market therein will continue;
(v) Purchaser will only have those rights to register the Securities as are set
forth in Section 8, and there is no assurance that any registration statement
filed pursuant thereto will be declared effective or will remain effective; (vi)
the Company has no obligation to qualify this Agreement under the 1939 Act and
has no present intention of doing so; and (vii) Purchaser may therefore be
precluded from selling or otherwise transferring or disposing of the Securities
for an indefinite period of time.

         (d) Reliance Upon Representation and Warranties. Purchaser is aware
that the Securities are being offered and sold in reliance upon specific
exemptions from the registration and qualification requirements of Federal and
state laws and that the Company is relying upon the truth and accuracy of the
representations and warranties of the Purchaser set forth herein in determining
the availability of such exemptions.

         (e) Investment Intent. Purchaser is acquiring the Securities for
investment only, for its own account, and not with view or for sale in
connection with, any distribution of securities. Purchaser has no present
intention of making a sale or distribution of any Securities.

         (f) Ability to Evaluate Risks and Merits of Investment. Purchaser
acknowledges receipt of the Disclosure Documents and further acknowledges that
it has reviewed the Disclosure Documents and has been afforded the opportunity
to obtain any information necessary to verify the accuracy of any
representations or information contained in this Agreement or in the Disclosure
Documents and has had all of its inquiries to the Company answered in full, and
has been furnished all requested material relating to the Company and the
offering and sale of the Securities. Neither the Purchaser nor its investment
adviser(s), if any, has been furnished any offering literature by the Company or
any of its affiliates, associates, or agents, other than this Agreement
(including its Exhibits and Schedules) and the Disclosure Documents. The
Purchaser has evaluated the risks of investing in the Company and has
substantial experience in making investment decisions of this type or is relying
upon his professional advisers (who have such experience) in making this
investment decision.

         (g) Residency and Taxpayer Identification Number. The true and correct
principal office address of Purchaser is 1011 Highway 71, Spring Lake, New
Jersey 07762. Purchaser has no present intention of changing its principal
office address. The taxpayer identification number of Purchaser is 22-3652318.

         (h) Ability of the Purchaser to Bear Risk of Investment. The Purchaser
is able to bear the economic risk of an investment in the Securities and, at the
present time, is able to afford a complete loss of such investment.

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         The Company acknowledges and agrees that the Purchaser makes no
representations or warranties with respect to the transactions contemplated
hereby other than those specifically set forth in this Section 6.

         7. Legends on Securities.

         (a) Legend required on Notes. The Company shall be entitled to cause a
legend in the following form to be endorsed on the face of each Note, whether
held by Purchaser or any subsequent holder:

                  "This Note and the Common Stock issuable upon conversion
                  hereof have not been registered under the Securities Act of
                  1933, as amended (the "Act"), nor under any state securities
                  law and may not be pledged, sold, assigned, hypothecated or
                  otherwise transferred until (1) a registration statement with
                  respect thereto is effective under the Act and any applicable
                  state securities law or (2) the company receives an opinion of
                  counsel to the Company or other counsel to the Holder of such
                  Note, which other counsel is reasonably satisfactory to the
                  Company, that such note and/or Common Stock may be pledged,
                  sold, assigned, hypothecated or transferred without an
                  effective registration statement under the Act or applicable
                  state securities laws."

         (b) Legend Required on Common Stock. The Company shall be entitled to
cause a legend in the following form to be endorsed on the face of any stock
certificate representing any shares of Common Stock issuable upon conversion of
Notes, whether held by Purchaser or any subsequent holder:

                  "The shares of stock represented by this certificate have not
                  been registered under the Securities Act of 1933, as amended,
                  or state securities laws and may not be sold or transferred in
                  the absence of such registration or an opinion of counsel, or
                  other evidence satisfactory to the Company, that such
                  registration is not required."

         8. Registration Rights. The Company will, within nine months of the
date hereof, use its best efforts to: (i) prepare and file under the 1933 Act a
registration statement relating to the Underlying Shares. The term "registration
statement" as used herein being deemed to include any form which may be used to
register a distribution of securities to the public for cash; (ii) prepare and
file with the appropriate state blue sky authorities the necessary documents to
register or qualify the Underlying Shares in such states as the Purchaser or the
holders of Notes, if other than Purchaser, shall reasonably request; provided,
however, that neither the Company nor its subsidiaries shall be required in
connection therewith to qualify as a foreign corporation where they are not now
so qualified or to take any action that would subject the Company or any
subsidiary to general service of process in any such jurisdiction where it is
not then so subject or subject the Company or any subsidiary to any material tax
in any such jurisdiction where it is not

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then subject; and (iii) cause such registration statement to become effective
and to keep such registration statement and state blue sky filings current and
effective during the term of the Notes.

         All expenses in connection with preparing and filing any registration
statement (and any registration or qualification under blue sky laws of the
states in which the offering will be made under such registration statement)
shall be borne in full by the Company, except that the underwriting commissions
and expenses attributable to the Underlying Shares so registered and the fees
and disbursements of counsel, if any, to the holders of the Underlying Shares or
Notes shall be borne by such holders. The Company may include other securities
in any such registration statement.

         The Company agrees to indemnify and hold harmless each holder of the
Notes and Underlying Shares, and each person, if any, who controls any such
holder within the meaning of Section 15 of the 1933 Act, from and against any
and all losses, liabilities, claims, damages, actions and liabilities caused by
any untrue statement of a material fact contained in any registration statement
or contained in a prospectus furnished under the 1933 Act or caused by any
omission to state a material fact therein necessary to make the statements
therein not misleading, unless such statement or omission was made in reliance
upon or in conformity with information furnished to the Company by the holder of
Notes or Underlying Shares, who is seeking indemnification, expressly for use in
such registration statement or prospectus

         Each holder of the Notes and Underlying Shares will indemnify the
Company, and each person who controls the Company within the meaning of Section
15 of the 1933 Act, from and against any and all losses, claims, damages,
expenses and liabilities caused by any untrue statement of a material fact
contained in any registration statement or contained in a prospectus furnished
under the 1933 Act or caused by any omission to state a material fact therein
necessary to make the statements therein not misleading, insofar as such losses,
claims, damages, expenses and liabilities are caused by such untrue statement or
omission based upon information furnished in writing to the Company by any such
holder expressly for use in any registration statement or prospectus. In
addition, each such holder will execute and deliver all such documents and
undertakings as the Company may deem necessary or desirable for purposes of
compliance with applicable Federal and state securities law. The Company's
obligations set forth herein with respect to each such holder are contingent on
such holder's satisfaction of its obligations.

         If any action, claim, proceeding or investigation is instituted or
threatened against a party in respect of which indemnity may be sought hereunder
(the "indemnified party"), the indemnified party shall promptly notify the party
from whom indemnity is sought (the "indemnifying party") thereof in writing, but
the omission so to notify the indemnifying party shall not relieve the
indemnifying party from any other obligation or liability that the indemnifying
party may have to the indemnified party under this Agreement or otherwise unless
such failure to notify has materially prejudiced the indemnifying party. The
indemnified party will, upon notice to the indemnifying party, have the right to
retain counsel of its choice in connection with any such action, claim,
proceeding or investigation, and to be reimbursed by the indemnifying party for
the

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reasonable fees and disbursements for such counsel, provided that such counsel
shall be reasonably satisfactory to the indemnifying party. In lieu of
reimbursing the party seeking indemnification for the expenses of defending any
such action, claim, proceeding or investigation, the indemnifying party shall
have the option of assuming and paying directly for the defense thereof, in
which case the indemnifying party shall use counsel reasonably acceptable to the
indemnified party, and the indemnifying party shall have no liability for the
expenses of defending any such action, claim, proceeding or investigation
incurred by the indemnified party after the indemnifying party notifies the
indemnified party of its assumption of such defense. No such claim or action may
be settled unless the indemnified party, on the one hand, and the indemnifying
party, on the other hand, consent thereto, which consent shall not be
unreasonably withheld.

         9. Listing and Reservation of Underlying Shares. The Company shall at
all times maintain a reserve of Common Stock for issuance upon conversion of the
Notes in accordance with their terms, in such amount as may be required to
perform its obligations in full under the Transaction Documents. The Company
shall also take all actions necessary to maintain at all times the listing on
the AMEX (as well as any other national securities exchange or market or trading
or quotation facility on which the Common Stock is then listed) of the total
number of Underlying Shares (as such number may be adjusted from time to time in
accordance with the provisions of the Notes), for the purpose of issuance upon
conversion of the Notes.

         10. Notices, etc. All notices, requests, consents and other
communications hereunder shall be effective only if in writing and delivered
personally or transmitted by nationally recognized express delivery service
(whether governmental or otherwise) or mailed by first class registered or
certified mail, postage prepaid, and addressed as follows:

         If to the Company:   1011 Highway 71
                              Spring Lake, New Jersey 07762

         If to the Purchaser: 1011 Highway 71
                              Spring Lake, New Jersey 07762

or such other address as may be designated in writing hereafter, in the same
manner by such Person.

         11. Amendments and Waivers. Neither this Agreement nor any term hereof
may be changed, waived, discharged or terminated orally or in writing, except
with the written consent of the Company and the Purchaser.

         12. Indemnification. Each party hereto agrees to indemnify and hold
harmless the other party, and each such other party's officers, directors,
partners and shareholders, from and against any loss, damage, liability or
expense (including, without limitation, reasonable attorneys' fees) due to or
arising out of a breach of such party's representations or obligations contained
herein.

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         13. Remedies. In addition to being entitled to exercise all rights
provided herein or granted by law, including recovery of damages, the Purchaser
will be entitled to specific performance of the obligations of the Company under
the Transaction Documents. Each of the Company and the Purchaser agree that
monetary damages may not be adequate compensation for any loss incurred by
reason of any breach of its obligations described in the foregoing sentence and
hereby agrees to waive in any action for specific performance of any such
obligation the defense that a remedy at law would be adequate.

         14. Fees and Expenses. The Company shall pay the fees and expenses of
Purchaser's attorneys and other advisors and consultants in connection with the
preparation and negotiation of the Transaction Documents. Subject to the
foregoing and except as otherwise set forth herein, each party shall pay the
fees and expenses of its advisers, counsel, accountants and other experts, if
any, and all other expenses incurred by such party incident to the negotiation,
preparation, execution, delivery and performance of this Agreement. The Company
shall pay all stamp and other taxes and duties levied in connection with the
issuance of the Securities pursuant hereto.

         15. Commitment with respect to additional Capital. On or before March
31, 2002, Coast Capital agrees to either (i) invest or otherwise obtain
investments in the Company (in addition to the $1,000,000 that Coast Capital is
investing in the $1,000,000 principal amount of Notes hereby) of at least
$750,000 (in the form of either a debt or equity investment) or (ii) obtain a
credit facility or other credit accommodation for the Company providing for
loans up to an amount of at least $750,000; provided, however, that Coast
Capital shall have no such obligation if (i) the Company is in default under
either of the Notes or a "Change of Control" (as such term is defined in the
Notes) has occurred, or (ii) the Company and Coast Capital cannot agree upon
reasonable terms for such investment or credit facility or other credit
accommodation after good- faith negotiations.

         16. Miscellaneous. This Agreement shall be construed and enforced in
accordance with and governed by the laws of the State of New Jersey, without
giving effect to conflict of laws principles. All the terms of this Agreement
shall be binding upon and inure to the benefit of and be enforceable by the
respective successors and assigns of the parties hereto, whether so expressed or
not, and in particular shall inure to the benefit of and be enforceable by any
holder or holders at any time of the Securities. This Agreement, together with
the Exhibits and Schedules hereto, the Stockholders Agreement and the Notes
contain the entire agreement and understanding between the parties with respect
to the subject matter hereof and supersede all prior agreements and
understandings, oral or written, with respect to such matters, which the parties
acknowledge have been merged into such documents, exhibits and schedules. The
headings in this Agreement are for purposes of reference only, and shall not
limit or otherwise affect any of the terms hereof. When the context in which
words are used in this Agreement indicates that such is the intent, singular
words shall include the plural and vice versa and masculine words shall include
the feminine and the neuter genders and vice versa. This Agreement may be
executed in two or more counterparts, all of which when taken together shall be
considered one and the same agreement and shall become effective when
counterparts have

                                       11
<PAGE>   12
been signed by each party and delivered to the other party, it being understood
that both parties need not sign the same counterpart. All representations,
warranties, covenants and agreements contained herein shall survive the Closing
and the delivery and conversion of the Notes. Each person executing this
Agreement on behalf of Purchaser or the Company represents that he is duly
authorized to execute this Agreement on behalf of such entity. This Agreement is
intended for the benefit of the parties hereto and their respective successors
and permitted assigns and is not for the benefit of, nor may any provision
hereof be enforced by, any other Person. In case any one or more of the
provisions of this Agreement shall be invalid or unenforceable in any respect,
the validity and enforceability of the remaining terms and provisions of this
Agreement shall not in any way be affected or impaired thereby and the parties
will attempt to agree upon a valid and enforceable provision which shall be a
reasonable substitute therefor, and upon so agreeing, shall incorporate such
substitute provision in this Agreement.

         IN WITNESS WHEREOF, the parties hereto have caused this Note Purchase
Agreement to be duly executed by their respective authorized signatories as of
the date first indicated above.

                                      INTERSYSTEMS, INC.

                                      By:_______________________________________
                                         Name:
                                         Title:

                                      COAST CAPITAL PARTNERS, LLC.

                                      By:_______________________________________
                                         Walter M. Craig, Jr., Managing Director

                                       12
<PAGE>   13
                                   SCHEDULE A

The Company's Annual Report on Form 10-K for 2000.

                                       13<PAGE>   1
                                  EXHIBIT 10.6

                             STOCKHOLDERS AGREEMENT

         Stockholders Agreement, dated as of April 25, 2001, by and among
Herbert M. Pearlman ("HMP"), David S. Lawi ("DSL"), Helm Capital Group, Inc., a
Delaware corporation ("Helm Capital;"), Helm Ventures, Inc., a Delaware
corporation that is a wholly-owned subsidiary of Helm Capital and was formerly
known as Helm Investment Company ("Helm Ventures;" collectively, Helm Capital
and Helm Ventures are known as "Helm") and Coast Capital Partners LLC, a New
Jersey limited liability company ("Coast Capital;" collectively, HMP, DSL, Helm
and Coast Capital are referred to as the "Stockholders"), and InterSystems,
Inc., a Delaware corporation (the "Corporation").

                                    RECITALS

         WHEREAS, pursuant to a Note Purchase Agreement between Coast Capital
and the Corporation, being entered into simultaneously herewith (the "Note
Purchase Agreement"), Coast Capital has agreed to invest in the Corporation;

         WHEREAS, HMP, DSL and Helm are currently stockholders of the
Corporation and, as a result of such holdings, will benefit from Coast Capital's
investment in the Corporation;

         WHEREAS, Coast Capital would not enter into the Note Purchase Agreement
and consummate the transactions contemplated thereby, unless this Stockholders
Agreement is duly executed and delivered by the Stockholders;

         WHEREAS, in order to induce Coast Capital to enter into the Note
Purchase Agreement and to consummate the transactions contemplated thereby, and
thereby to reap the benefits therefrom through their shareholdings in the
Corporation, HMP, DSL and Helm desire to enter into this Agreement;

         NOW, THEREFORE, in consideration of the foregoing recitals and the
mutual covenants hereinafter set forth, the parties hereto agree as follows:

         1. Election of Directors. HMP and DSL hereby resign as directors of the
Corporation, and of any of the Corporation's subsidiaries, effective as of the
date hereof. HMP, DSL and Helm shall, and shall cause their "Affiliates" (as
such term is defined in Section 5(a)(i)) to, (i) vote all of their shares of
capital stock of the Corporation and otherwise use their best efforts to cause
the Board of Directors of the Corporation (the "Board") to consist of such
directors as shall have been nominated by Coast Capital therefor; (ii) upon the
death, resignation or removal of a director nominated by Coast Capital, promptly
elect or cause to be elected to the Board a nominee of Coast Capital, except
that no Stockholder shall be required to elect or cause the election to the
Board any person who was previously removed from the Board for cause, and (iii)
remove, with or without cause, at the request
<PAGE>   2
of Coast Capital, any director that was nominated by it. As soon as reasonably
practicable following the execution and delivery of this Agreement, and in any
event no later than September 15, 2001, the Stockholders shall take all such
actions as may be necessary or appropriate in order to cause a meeting of
stockholders of the Corporation to be duly called for the purpose of electing
directors to the Board, and to vote their shares of capital stock so that
immediately following the election, the majority of the directors comprising the
Board shall be nominees of Coast Capital.

         2.  Transfer of Shares.

         (a) Except as otherwise provided in this Agreement, no Stockholder,
other than Coast Capital, may transfer any interest in or create any lien on any
"Corporation Securities" (as hereinafter defined), voluntarily or involuntarily
by operation of law or otherwise, except to the Corporation or another
Stockholder; provided, however, that HMP and DSL may transfer Corporation
Securities to members of their "Immediate Family" (as hereinafter defined). Any
Corporation Securities transferred to a member of a Stockholder's Immediate
Family or another Stockholder or an Affiliate of a Stockholder shall remain
subject to the terms of this Agreement, and the transferee (if other than Coast
Capital) shall be bound to the same extent as the transferor, and the
Corporation shall, upon the request of Coast Capital, as a condition of
transfer, require the transferee to sign a counterpart of this agreement or
other document agreeing to be so bound. For purposes of this Agreement: the term
"Corporation Securities" shall mean any shares of capital stock of the
Corporation, or any security convertible into any such shares of capital stock
or any warrant, option or other right exchangeable or exercisable for such
shares of capital stock whether owned or held by a Stockholder as of the date
hereof or at any time hereafter (regardless of whether such security is
convertible, exchangeable or exercisable at the time of the proposed sale or
other transfer); and "Immediate Family" means spouse, issue, spouses of issue
and any trust for the principal benefit of any of the foregoing. A person who is
a member of the Immediate Family as a spouse of a member ceases to be a member
of the Immediate Family immediately upon the effective date of a divorce from
such member. Each of HMP and DSL shall cause his spouse to execute, simultaneous
with his execution of this Agreement, a Consent of Spouse, in the form of
Exhibit A annexed hereto.

         Any attempt to transfer an interest in Corporation Securities owned by
a Stockholder, other than Coast Capital, in violation of this Agreement shall be
ineffective and the Corporation shall refuse to register such Corporation
Securities in the name of the transferee.

         (b) A Stockholder, other than Coast Capital, who desires to transfer
any Corporation Securities to any prospective purchaser (other than pursuant to
an open market transaction subject to Section 2(c), or to the Corporation, a
member of his Immediate Family (in the case of HMP or DSL) or another
Stockholder) shall give Coast Capital a notice of any offer by such prospective
purchaser ( a "Third Party Offer Notice"). The offer by the prospective
purchaser must be in writing and must be enforceable against the prospective
purchaser. The notice must have attached to it a copy of the offer by the
prospective purchaser that states the name and address of the prospective
purchaser, the number and class and series of Corporation Securities to be
purchased, the price per share, and other terms of the offer (the "Third Party
Offer"). If part or all of the consideration for

                                        2
<PAGE>   3
the Corporation Securities, included in the Third Party Offer consists of
property other than cash, the Third Party Offer shall state the cash value of
such property. If Coast Capital gives notice of a dispute as to the stated cash
value within 7 days of delivery of the Third Party Offer Notice, the dispute
shall be determined by a mutually agreeable third party. The Third Party Offer
Notice shall constitute an offer by the offering Stockholder to sell the
Corporation Securities to Coast Capital at the price, including the cash value
of any non-cash consideration, and on the terms specified in the Third Party
Offer. Within 10 days after Coast Capital receives the Third Party Offer Notice,
unless Coast Capital shall give notice of a dispute as to the value of any
non-cash consideration within such 7 day period, Coast Capital will decide
whether it will purchase some or all of the offered Corporation Securities, and
in the event it elects to purchase Corporation Securities, shall deliver to the
offering Stockholder, within said 10 day period, a written notice specifying the
amount of Corporation Securities that it is electing to purchase. If Coast
Capital gives notice of a dispute of the value of any non-cash consideration,
such 10 day time period will not begin until the dispute is finally resolved. If
Coast Capital does not accept the Third Party Offer for all of the offered
Corporation Securities, the offering Stockholder may sell all, but not less than
all, the offered Corporation Securities not purchased by Coast Capital pursuant
to the terms of the Third Party Offer during a period of 90 days after the end
of the period provided for acceptance of the Third Party Offer by Coast Capital.
Except as otherwise provided in Section 2(a) with respect to Immediate Family
Members, other Stockholders and Stockholder Affiliates, any Corporation
Securities so transferred to a third party shall be free of the restrictions
contained in this Agreement. If the offering Stockholder does not sell the
offered Corporation Securities to the proposed purchaser pursuant to the terms
of the Third Party Offer within said 90 day period, then the offering
Stockholder shall continue to hold the offered Corporation Securities subject to
all of the terms and conditions of this Agreement.

         (c) Notwithstanding the foregoing provisions of Section 2(b) or
anything else to the contrary contained herein, if a Stockholder, other than
Coast Capital, desires to sell Corporation Securities in open market
transactions rather than in a private sale or sales, then, such Stockholder need
not comply with Section 2(b) so long as he has complied with this Section 2(c).
Prior to effectuating any open market sales of Corporation Securities, a
Stockholder (other than Coast Capital) must deliver written notice (an "Open
Market Offer Notice") to Coast Capital specifying the number of shares or other
amount of Corporation Securities (the "Offered Securities") that he desires to
sell in open market transactions. Such Open Market Offer Notice shall constitute
an offer (an "Open Market Offer") by such Stockholder to sell to Coast Capital
up to all of the Offered Securities. The price at which such securities shall be
deemed offered for sale shall be equal to the closing sales price, regular way,
of the Offered Securities on the trading day immediately preceding the date the
Open Market Offer Notice is delivered to Coast Capital, or in case no such
reported sale takes place on such day, the average of the last reported bid and
asked prices regular way, in either case on the principal national securities
exchange on which the Offered Securities are admitted to trading or listed, or
if not listed or admitted to trading on such an exchange, the average of the
closing bid and asked prices as reported by NASDAQ, or other similar
organization if NASDAQ is no longer reporting such information. Coast Capital
may elect to purchase all or a portion of the Offered Securities by delivering a
written notice (an "Acceptance Notice") to the offering Stockholder within five
business

                                        3
<PAGE>   4
days of Coast Capital's receipt of the Open Market Offer Notice, which
Acceptance Notice shall specify the number or other amount of Offered Securities
that Coast Capital is electing to acquire. If Coast Capital does not accept the
Open Market Offer for all of the Offered Securities, the offering Stockholder
may sell, in open market transactions, up to the remaining amount of Offered
Securities not purchased by Coast Capital during a period of 90 days after the
end of the period provided for acceptance of the Open Market Offer by Coast
Capital. Except as otherwise provided in Section 2(a) with respect to Immediate
Family Members, other Stockholders and Stockholder Affiliates, any amount of
Corporation Securities so sold shall be free of the terms and restrictions of
this Agreement. Any amount of Corporation Securities that are not sold in open
market transactions, within such 90 day period, shall continue to remain subject
to the terms of this Agreement. For purposes of this Agreement, in order to be
deemed an open market transaction, the sale by the offering Stockholder must be
effectuated in a "brokers' transaction" as described in Rule 144 promulgated
under the Securities Act of 1933, as amended (the "Act"), and the offering
Stockholder shall deliver to Coast Capital such documentation as it shall
reasonably request in order to ascertain the offering Stockholder's compliance
therewith.

         (d) If Coast Capital accepts an offer to purchase Corporation
Securities pursuant to Section 2(b) or (c), then the sale and purchase of the
shares, or other amount of Corporation Securities to be purchased and sold
pursuant thereto, shall be consummated as promptly as practicable following
Coast Capital's acceptance, at such time and place as the selling Stockholder
and Coast Capital shall deem mutually convenient. At the closing, the selling
Stockholder shall deliver to Coast Capital a certificate or certificates
representing the shares or other amount of Corporation Securities to be sold to
it, duly endorsed for transfer to Coast Capital and with all necessary stock
transfer tax stamps affixed thereto, and Coast Capital shall pay to the selling
Stockholder the purchase price for the shares, or other amount of Corporation
Securities sold to it, by delivering to the selling Stockholder a certified or
official bank check payable to the seller or by wire transfer of immediately
available funds to an account designated in writing by the seller for such
purpose prior to the closing.

         (e) Each of HMP and DSL (and members of their Immediate Family who may
succeed to the ownership of their Corporation Securities) agree to maintain in
effect at all times a will providing for transfer of the Corporation Securities
only in accordance with the terms of this Agreement and directing his executor
or other administrator of his personal property to execute all documents and to
take all other appropriate action to effectuate the purposes of this Agreement.

         3. Legend. Each of the Stockholders, other than Coast Capital, agree
that his Corporation Securities shall have inscribed thereon the following
legend:

                  'OWNERSHIP AND TRANSFER OF THE SECURITIES REPRESENTED BY THIS
                  CERTIFICATE ARE SUBJECT TO, AND SUCH SECURITIES MAY BE HELD,
                  SOLD, ASSIGNED, PLEDGED, HYPOTHECATED OR OTHERWISE DISPOSED OF
                  OR ENCUMBERED ONLY IN ACCORDANCE WITH THE TERMS AND CONDITIONS
                  OF A CERTAIN STOCKHOLDERS AGREEMENT DATED AS OF APRIL 25,
                  2001, AMONG THE CORPORATION AND CERTAIN OF ITS STOCKHOLDERS,
                  AS AMENDED FROM TIME TO TIME, A COPY OF WHICH IS ON FILE AT
                  THE OFFICES OF THE CORPORATION.'"

                                        4
<PAGE>   5
         4. Assignment of Coast Capital's Rights. The rights and benefits of
this Agreement enjoyed by Coast Capital may be assigned by Coast Capital in
connection with the transfer of some or all of its Corporation Securities..
Nothing in this Agreement shall be construed as restricting the ability of Coast
Capital to transfer its Corporation Securities.

         5.  Representations and Warranties of HMP, DSL and Helm.

         (a)  HMP represents and warrants as follows:

                  (i) Schedule A annexed hereto accurately and completely sets
forth all of the Corporation Securities owned by him and his "Affiliates " (as
hereinafter defined) . As of the date hereof, except as otherwise noted on
Schedule A, each of the respective owners of such securities, as set forth on
Schedule A, has good and valid title to such securities, free and clear of all
mortgages, pledges, liens, security interests, conditional sale agreements,
charges, encumbrances and restrictions of every kind and nature. For purposes of
this agreement, an "Affiliate" of a Person shall mean any Person who directly or
indirectly through one or more intermediaries, controls, is under common control
with or is controlled by, the applicable Person; "Person" shall mean an
individual or a corporation, association, limited liability company, joint
venture, partnership, trust or other private or governmental entity. and

                  (ii) This Agreement is valid and binding upon him in
accordance with its terms and neither the execution and delivery of this
Agreement nor the performance of the obligations contemplated hereby will
constitute any violation or breach of any provision of any contract or other
instrument to which he is a party or by which any of his assets may be affected
or secured, or any order, writ, injunction, decree, statute, rule or regulation,
or will result in the creation of any lien, charge or encumbrance on any of his
assets.

         (b)  DSL represents and warrants as follows:

                  (i) Schedule B annexed hereto accurately and completely sets
forth all of the Corporation Securities owned by him and his Affiliates. As of
the date hereof, except as otherwise noted on Schedule B, each of the respective
owners of such securities, as set forth on Schedule B, has good and valid title
to such securities, free and clear of all mortgages, pledges, liens, security
interests, conditional sale agreements, charges, encumbrances and restrictions
of every kind and nature; and

                  (ii) This Agreement is valid and binding upon him in
accordance with its terms and neither the execution and delivery of this
Agreement nor the performance of the obligation contemplated hereby will
constitute any violation or breach of any provision of any contract or other
instrument to which he is a party or by which any of his assets may be affected
or secured, or any order, writ, injunction, decree, statute, rule or regulation,
or will result in the creation of any lien, charge or encumbrance on any of his
assets.

                                        5
<PAGE>   6
         (c) HMP, DSL and Helm, jointly and severally, represent and warrant as
follows:

                  (i) Schedule C annexed hereto accurately and completely sets
forth all of the Corporation Securities owned by Helm and its Affiliates. As of
the date hereof, except as otherwise expressly noted on Schedule C, each of the
respective owners of such securities, as set forth on Schedule C, has good and
valid title to such securities, free and clear of all mortgages, pledges, liens,
security interests, conditional sale agreements, charges, encumbrances and
restrictions of every kind and nature;

                  (ii) Each of Helm Capital and Helm Ventures is duly organized,
validly existing and in good standing under the laws of the state of its
incorporation.

                  (iii) The Board of Directors of each of Helm Capital and Helm
Ventures has authorized the execution and delivery of this Agreement by such
corporation and the consummation by such corporation of the transactions
contemplated hereby; and no action by either of such corporation's stockholders
is required in connection therewith. Each such corporation has the power and
authority to execute and deliver this Agreement, to consummate the transactions
contemplated hereby and to take all other actions required to be taken by it
pursuant to the provisions hereof. The person executing this Agreement on behalf
of each such corporation is fully authorized to do so. This Agreement is valid
and binding upon each of Helm Capital and Helm Ventures in accordance with its
terms. Neither the execution and delivery of this Agreement nor the performance
of the obligations contemplated hereby by Helm Capital or Helm Ventures will
constitute any violation or breach of the Certificate of Incorporation or the
By-laws of either such corporation or any provision of any contract or other
instrument to which either such corporation is a party or by which any of its
assets may be affected or secured, or any order, writ, injunction, decree,
statute, rule or regulation, or will result in the creation of any lien, charge
or encumbrance on either such corporation's assets.

         6. Remedies. In addition to being entitled to exercise all rights
provided herein or granted by law, including recovery of damages, the parties
agree that each of them will be entitled to specific performance of the
obligations of the other parties contained in this Agreement. Each of the
parties agrees that monetary damages may not be adequate compensation for any
loss incurred by reason of any breach of its obligations contained in this
Agreement and hereby agrees to waive in any action for specific performance of
any such obligation the defense that a remedy at law would be adequate.

         7.  Miscellaneous.

         (a) This Agreement shall be governed by, and construed in accordance
with, the laws of the State of New Jersey applicable to contracts made and to be
performed wholly within said state without giving effect to conflict of laws
principles.

         (b) Whenever it is provided herein that any notice or other
communication shall or may be given to any of the parties by any other parties,
or whenever any of the parties desires to give any other parties any
communication with respect to this Agreement, each such notice or other

                                        6
<PAGE>   7
communication shall be in writing and shall be deemed to have been validly given
or delivered (i) upon the earlier of actual receipt and three business days
after deposit in the United States Mail, registered or certified mail, return
receipt requested, with proper postage prepaid, (ii) upon transmission, when
sent by telecopy or other similar facsimile transmission (with such telecopy or
facsimile promptly confirmed by delivery of a copy by personal delivery or
United States Mail as otherwise provided in this Section 7(b)), (iii) one
business day after deposit with a reputable overnight courier with all charges
prepaid, (iv) when delivered, if hand-delivered by messenger, all of which shall
be addressed to the party to be notified and sent to the applicable address or
facsimile number set forth below or to such other address (or facsimile number)
as may be substituted by notice given as herein provided.

                  (i)      if to Coast Capital, addressed to Coast Capital at:

                           1011 Highway 71
                           Spring Lake, New Jersey 07762
                           Attention: Walter M. Craig, Jr., President
                           Fax No: 732-282-1811

                  (ii)     if to Helm, addressed to Helm Capital at:

                           537 Steamboat Road
                           Greenwich, CT 06830
                           Attention: Chief Executive Officer
                           Fax No: 203-629-1961

                  (iii)    if to HMP, addressed to him at:

                           c/o Helm Capital Group, Inc.
                           537 Steamboat Road
                           Greenwich, CT 06830
                           Fax No: 203-629-1961

                  (iv)     if to DSL, addressed to him at:

                           3 Ramapo Trail
                           Harrison, NY 10528
                           Fax No: 914-835-3121

         (c) This Agreement, together with the Schedules hereto, contains the
entire agreement and understanding of the parties with respect to the subject
matters hereof and supersedes all prior and contemporaneous agreements and
understandings, oral or written, with respect to such matters, which the parties
acknowledge have been merged into this Agreement and such Schedules.

                                        7
<PAGE>   8
         (d) No waiver or modification of this Agreement shall be valid unless
in writing signed by the party sought to be charged therewith and then only to
the extent set forth therein.

         (e) This Agreement shall be binding upon, and inure to the benefit of,
the parties hereto and their respective heirs, executors, administrators,
successors and assigns and shall apply to any Corporation Securities which may
hereafter be acquired by any of the parties hereto.

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

         (g) This Agreement may be executed in any number of counterparts, each
of which shall be deemed an original and all of which together shall be deemed
to be one and the same agreement.

         (h) The headings in this Agreement are for purposes of reference only,
and shall not limit or otherwise affect any of the terms hereof.

         (i) When the context in which words are used in this Agreement
indicates that such is the intent, singular words shall include the plural and
vice versa and masculine words shall include the feminine and the neuter genders
and vice versa.

         (j) The parties agree to cause a copy of this Agreement to be kept on
file at the offices of the Corporation.

         (k) This Agreement shall remain in full force and effect until all the
Corporation Securities are owned by a single Stockholder, unless terminated
prior thereto by the agreement of all the Stockholders and the Corporation;
provided, however, that in any event this Agreement shall terminate on March 31,
2006.

         (l) Each party agrees to execute such agreements, instruments and
documents, and to take such actions (including, without limitation, surrendering
to the Corporation the certificates representing the Corporation Securities
currently owned or held by him, or owned or held by him hereafter, for the
purpose of the inscribing thereon the legend set forth in Section 3), as shall
be reasonably requested by another party in order to effectuate the intent and
purposes of this Agreement.

                                        8
<PAGE>   9
IN WITNESS WHEREOF, the parties hereto have executed this Agreement as of the
date first above written.

                                   COAST CAPITAL PARTNERS LLC.

                                   By: _____________________________________
                                   Name:
                                   Title:

                                   HELM CAPITAL GROUP, INC.

                                   By: _____________________________________
                                   Name:
                                   Title:

                                   HELM VENTURES, INC.

                                   By:______________________________________
                                   Name:
                                   Title:

                                   _________________________________________
                                   Herbert M. Pearlman, individually

                                   _________________________________________
                                   David S. Lawi, individually

                                   INTERSYSTEMS, INC.

                                   By:________________________________________
                                   Name:
                                   Title:

                                        9
<PAGE>   10
                                    EXHIBIT A

                                CONSENT OF SPOUSE

         I, ___________________________________, spouse of ______________
acknowledge that I have read the Stockholders Agreement, dated as of April __,
2001, by and among, Herbert M. Pearlman, David S. Lawi, Helm Capital Group,
Inc., Helm Ventures, Inc. and Coast Capital Partners, LLC. ("Coast Capital"), as
the same may be amended, modified or restated hereafter (the "Agreement"), to
which this Consent is attached as Exhibit A and that I know its contents. I am
aware that by its provisions that Coast Capital has the option to purchase all
of the shares of capital stock, and other securities convertible or exercisable
into shares of capital stock, of the Company (such shares of capital stock and
other securities being referred to as "Corporation Securities") of which I may
become possessed as a result of a gift from my spouse or a court decree and/or
any property settlement in any domestic litigation.

         I hereby agree that my interest, if any, in the Corporation Securities
subject to the Agreement shall be irrevocably bound by the Agreement and further
understand and agree that any community property interest I may have in such
Corporation Securities shall be similarly bound by the Agreement.

         I agree to the sale and purchase under the terms and conditions
described in the Agreement and I hereby consent to the sale of the Corporation
Securities by my spouse or his legal representative in accordance with the
provisions of the Agreement.

         I AM AWARE THAT THE LEGAL, FINANCIAL AND RELATED MATTERS CONTAINED IN
THE AGREEMENT ARE COMPLEX AND THAT I AM FREE TO SEEK INDEPENDENT PROFESSIONAL
GUIDANCE OR COUNSEL WITH RESPECT TO THIS CONSENT. I HAVE EITHER SOUGHT SUCH
GUIDANCE OR COUNSEL OR DETERMINED AFTER REVIEWING THE AGREEMENT CAREFULLY THAT I
WILL WAIVE SUCH RIGHT.

         Dated as of the    day of ______________, 2001.

                                              ----------------------------------
                                              (Signature)

                                       10

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