<PAGE>


NEITHER THIS WARRANT NOR THE SHARES ISSUABLE UPON EXERCISE HEREOF HAVE BEEN
REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE "SECURITIES ACT")
OR ANY OTHER APPLICABLE SECURITIES LAWS IN RELIANCE UPON AN EXEMPTION FROM THE
REGISTRATION REQUIREMENTS OF THE SECURITIES ACT AND SUCH OTHER SECURITIES LAWS.
NEITHER THIS WARRANT NOR THE SHARES ISSUABLE UPON EXERCISE HEREOF MAY BE SOLD,
PLEDGED, TRANSFERRED, ENCUMBERED OR OTHERWISE DISPOSED OF EXCEPT PURSUANT TO AN
EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES ACT OR IN A TRANSACTION
WHICH IS EXEMPT FROM REGISTRATION UNDER THE PROVISIONS OF THE SECURITIES ACT.


April 10, 2000                                                             No. 1
Great Neck, New York

                             STOCK PURCHASE WARRANT

                  To Purchase 10,000 Shares of Common Stock of

                                 NAM Corporation

                  THIS CERTIFIES that, for value received, Venture Catalyst
Incorporated (the "Holder"), is entitled, upon the terms and subject to the
conditions hereinafter set forth, at any time on or after the earlier of six (6)
months from (x) April 10, 2000 or (y) or termination of the Letter Agreement,
dated as of April 10, 2000 (the "Letter Agreement") (the "Initial Exercise
Date") and on or prior to the close of business on April 10, 2005 (the
"Termination Date") but not thereafter, to subscribe for and purchase from NAM
Corporation, a corporation incorporated in Delaware (the "Company"), up to ten
thousand (10,000) shares (the "Warrant Shares") of Common Stock, $.001 par
value, of the Company (the "Common Stock"). The purchase price of one share of
Common Stock under this Warrant shall be $7.34 (the "Exercise Price"). The
Exercise Price and the number of shares for which the Warrant is exercisable
shall be subject to adjustment as provided herein. In the event of any conflict
between the terms of this Warrant and the Letter Agreement, the Letter Agreement
shall control. Capitalized terms used and not otherwise defined herein shall
have the meanings set forth for such terms in the Letter Agreement.

                  1. Title to Warrant. Prior to the Termination Date and subject
to compliance with applicable laws and the terms of this Warrant, this Warrant
and all rights hereunder are transferable, in whole or in part, at the office or
agency of the Company by the holder hereof in person or by duly authorized
attorney, upon surrender of this Warrant together with the Assignment Form
annexed hereto properly endorsed.

                  2. Authorization of Shares. The Company covenants that all
shares of Common Stock which may be issued upon the exercise of rights
represented by this Warrant will, upon exercise of the rights represented by
this Warrant, be duly authorized, validly issued, fully paid and nonassessable
and free from all taxes, liens and charges in respect of the issue thereof
(other than taxes in respect of any transfer occurring contemporaneously with
such issue).


<PAGE>

                  3. Exercise of Warrant. Except as provided in Section 4
herein, exercise of the purchase rights represented by this Warrant may be made
at any time or times on or after the Initial Exercise Date, and before the close
of business on the Termination Date by the surrender of this Warrant and the
Notice of Exercise Form annexed hereto duly executed, at the office of the
Company (or such other office or agency of the Company as it may designate by
notice in writing to the registered holder hereof at the address of such holder
appearing on the books of the Company) and upon payment of the Exercise Price of
the shares thereby purchased by wire transfer or cashier's check drawn on a
United States bank, the holder of this Warrant shall be entitled to receive a
certificate for the number of shares of Common Stock so purchased. Certificates
for shares purchased hereunder shall be delivered to the holder hereof within
five (5) Trading Days after the date on which this Warrant shall have been
exercised as aforesaid. This Warrant shall be deemed to have been exercised and
such certificate or certificates shall be deemed to have been issued, and Holder
or any other person so designated to be named therein shall be deemed to have
become a holder of record of such shares for all purposes, as of the date the
Holder faxes a Notice of Exercise to the Company, provided that such fax notice
is followed by delivery of the original notice and payment to the Company of the
Exercise Price and all taxes required to be paid by Holder, if any, pursuant to
Section 5 prior to the issuance of such shares, have been paid within three (3)
Trading Days of such fax notice. If this Warrant shall have been exercised in
part, the Company shall, at the time of delivery of the certificate or
certificates representing Warrant Shares, deliver to Holder a new Warrant
evidencing the rights of Holder to purchase the unpurchased shares of Common
Stock called for by this Warrant, which new Warrant shall in all other respects
be identical with this Warrant.

                  4. No Fractional Shares or Scrip. No fractional shares or
scrip representing fractional shares shall be issued upon the exercise of this
Warrant. As to any fraction of a share which Holder would otherwise be entitled
to purchase upon such exercise, the Company shall pay a cash adjustment in
respect of such final fraction in an amount equal to the Exercise Price.

                  5. Charges, Taxes and Expenses. Issuance of certificates for
shares of Common Stock upon the exercise of this Warrant shall be made without
charge to the holder hereof for any issue or federal or state transfer tax or
other incidental expense in respect of the issuance of such certificate, all of
which taxes and expenses shall be paid by the Company, and such certificates
shall be issued in the name of the holder of this Warrant or in such name or
names as may be directed by the holder of this Warrant; provided, however, that
in the event certificates for shares of Common Stock are to be issued in a name
other than the name of the holder of this Warrant, this Warrant when surrendered
for exercise shall be accompanied by the Assignment Form attached hereto duly
executed by the holder hereof; and the Company may require, as a condition
thereto, the payment of a sum sufficient to reimburse it for any transfer tax
incidental thereto.

                  6. Closing of Books. The Company will not close its
shareholder books or records in any manner which prevents the timely exercise of
this Warrant.

                  7. Transfer, Division and Combination.


<PAGE>

                       (a) The Holder (and its transferees and assigns), by
acceptance of this Warrant, covenants and agrees that it is acquiring the
Warrants evidenced hereby, and, upon exercise hereof, the Warrant Shares, for
its own account as an investment and not with a view to distribution thereof.
The Warrant Shares have not been registered under the Securities Act or any
state securities laws and no transfer of any Warrant Shares shall be permitted
unless the Company has received notice of such transfer, at the address of its
principal office set forth in the Letter Agreement, in the form of assignment
attached hereto, accompanied by an opinion of counsel reasonably satisfactory to
the Company that an exemption from registration of such Warrants or Warrant
Shares under the Securities Act is available for such transfer. Upon any
exercise of the Warrants, certificates representing the Warrant Shares shall
bear a restrictive legend substantially identical to that set forth on the face
of this Warrant certificate.

                       (b) This Warrant may be divided or combined with other
Warrants upon presentation hereof at the aforesaid office of the Company,
together with a written notice specifying the names and denominations in which
new Warrants are to be issued, signed by Holder or its agent or attorney.
Subject to compliance with Section 7(a), as to any transfer which may be
involved in such division or combination, the Company shall execute and deliver
a new Warrant or Warrants in exchange for the Warrant or Warrants to be divided
or combined in accordance with such notice.

                       (c) The Company shall prepare, issue and deliver at its
own expense (other than transfer taxes) the new Warrant or Warrants under this
Section 7.

                       (d) The Company agrees to maintain, at its aforesaid
office, books for the registration and the registration of transfer of the
Warrants.

                  8. No Rights as Shareholder until Exercise. This Warrant does
not entitle the holder hereof to any voting rights or other rights as a
shareholder of the Company prior to the exercise hereof. Upon the surrender of
this Warrant and the payment of the aggregate Exercise Price, the Warrant Shares
so purchased shall be and be deemed to be issued to such holder as the record
owner of such shares as of the close of business on the later of the date of
such surrender or payment.

                  9. Loss, Theft, Destruction or Mutilation of Warrant. The
Company covenants that upon receipt by the Company of evidence reasonably
satisfactory to it of the loss, theft, destruction or mutilation of this Warrant
certificate or any stock certificate relating to the Warrant Shares, and in case
of loss, theft or destruction, of indemnity or security reasonably satisfactory
to it (which shall not exceed that customarily charged by the Company's transfer
agent) and upon surrender and cancellation of such Warrant or stock certificate,
if mutilated, the Company will make and deliver a new Warrant or stock
certificate of like tenor and dated as of such cancellation, in lieu of such
Warrant or stock certificate.

                  10. Saturdays, Sundays, Holidays, etc. If the last or
appointed day for the taking of any action or the expiration of any right
required or granted herein shall be a Saturday, Sunday or a legal holiday, then
such action may be taken or such right may be exercised on the next succeeding
day not a Saturday, Sunday or legal holiday.


<PAGE>

                  11. Adjustments of Exercise Price and Number of Warrant
Shares. (a) Stock Splits, etc. The number and kind of securities purchasable
upon the exercise of this Warrant and the Exercise Price shall be subject to
adjustment from time to time upon the happening of any of the following. In case
the Company shall (i) pay a dividend in shares of Common Stock or make a
distribution in shares of Common Stock to holders of its outstanding Common
Stock, (ii) subdivide its outstanding shares of Common Stock into a greater
number of shares of Common Stock, (iii) combine its outstanding shares of Common
Stock into a smaller number of shares of Common Stock or (iv) issue any shares
of its capital stock in a reclassification of the Common Stock, then the number
of Warrant Shares purchasable upon exercise of this Warrant immediately prior
thereto shall be adjusted so that the holder of this Warrant shall be entitled
to receive the kind and number of Warrant Shares or other securities of the
Company which he would have owned or been entitled to receive had such Warrant
been exercised in advance thereof. Upon each such adjustment of the kind and
number of Warrant Shares or other securities of the Company which are
purchasable hereunder, the holder of this Warrant shall thereafter be entitled
to purchase the number of Warrant Shares or other securities resulting from such
adjustment at an Exercise Price per Warrant Share or other security obtained by
multiplying the Exercise Price in effect immediately prior to such adjustment by
the number of Warrant Shares purchasable pursuant hereto immediately prior to
such adjustment and dividing by the number of Warrant Shares or other securities
of the Company resulting from such adjustment. An adjustment made pursuant to
this paragraph shall become effective immediately after the effective date of
such event retroactive to the record date, if any, for such event.

                       (b) Reorganization, Reclassification, Merger,
Consolidation or Disposition of Assets. In case the Company shall reorganize its
capital, reclassify its capital stock, consolidate or merge with or into another
corporation (where the Company is not the surviving corporation or where there
is a change in or distribution with respect to the Common Stock of the Company),
or sell, transfer or otherwise dispose of all or substantially all its property,
assets or business to another corporation and, pursuant to the terms of such
reorganization, reclassification, merger, consolidation or disposition of
assets, shares of common stock of the successor or acquiring corporation, or any
cash, shares of stock or other securities or property of any nature whatsoever
(including warrants or other subscription or purchase rights) in addition to or
in lieu of common stock of the successor or acquiring corporation ("Other
Property"), are to be received by or distributed to the holders of Common Stock
of the Company, then Holder shall have the right thereafter to receive, upon
exercise of this Warrant, the number of shares of common stock of the successor
or acquiring corporation or of the Company, if it is the surviving corporation,
and Other Property receivable upon or as a result of such reorganization,
reclassification, merger, consolidation or disposition of assets by a holder of
the number of shares of Common Stock for which this Warrant is exercisable
immediately prior to such event. In case of any such reorganization,
reclassification, merger, consolidation or disposition of assets, the successor
or acquiring corporation (if other than the Company) shall expressly assume the
due and punctual observance and performance of each and every covenant and
condition of this Warrant to be performed and observed by the Company and all
the obligations and liabilities hereunder, subject to such modifications as may
be deemed appropriate (as determined in good faith by resolution of the Board of
Directors of the Company) in order to provide for adjustments of shares of
Common Stock for which this Warrant is exercisable which shall be as nearly
equivalent as practicable to the adjustments provided for in this Section 11.
For purposes of this Section 11, "common stock of the successor or acquiring
corporation" shall include stock of such corporation of any class which is not
preferred as to dividends or assets over any other class of stock of such
corporation and which is not subject to redemption and shall also include any
evidences of indebtedness, shares of stock or other securities which are
convertible into or exchangeable for any such stock, either immediately or upon
the arrival of a specified date or the happening of a specified event and any
warrants or other rights to subscribe for or purchase any such stock. The
foregoing provisions of this Section 11 shall similarly apply to successive
reorganizations, reclassifications, mergers, consolidations or disposition of
assets.


<PAGE>

                  12. Voluntary Adjustment by the Company. The Company may at
any time during the term of this Warrant, reduce the then current Exercise Price
to any amount and for any period of time deemed appropriate by the Board of
Directors of the Company.

                  13. Notice of Adjustment. Whenever the number of Warrant
Shares or number or kind of securities or other property purchasable upon the
exercise of this Warrant or the Exercise Price is adjusted, as herein provided,
the Company shall promptly mail by registered or certified mail, return receipt
requested, to the holder of this Warrant notice of such adjustment or
adjustments setting forth the number of Warrant Shares (and other securities or
property) purchasable upon the exercise of this Warrant and the Exercise Price
of such Warrant Shares (and other securities or property) after such adjustment,
setting forth a brief statement of the facts requiring such adjustment and
setting forth the computation by which such adjustment was made. Such notice, in
the absence of manifest error, shall be conclusive evidence of the correctness
of such adjustment.

                  14. Notice of Corporate Action. If at any time:

                       (a) the Company shall take a record of the holders of its
Common Stock for the purpose of entitling them to receive a dividend or other
distribution, or any right to subscribe for or purchase any evidences of its
indebtedness, any shares of stock of any class or any other securities or
property, or to receive any other right, or

                       (b) there shall be any capital reorganization of the
Company, any reclassification or recapitalization of the capital stock of the
Company or any consolidation or merger of the Company with, or any sale,
transfer or other disposition of all or substantially all the property, assets
or business of the Company to, another corporation or,

                       (c) there shall be a voluntary or involuntary
dissolution, liquidation or winding up of the Company;

then, in any one or more of such cases, the Company shall give to Holder (i) at
least 10 days' prior written notice of the record date for such dividend,
distribution or right or for determining rights to vote in respect of any such
reorganization, reclassification, merger, consolidation, sale, transfer,
disposition, liquidation or winding up, and (ii) in the case of any such
reorganization, reclassification, merger, consolidation, sale, transfer,
disposition, dissolution, liquidation or winding up, at least 10 days' prior
written notice of the date when the same shall take place. Such notice in
accordance with the foregoing clause also shall specify (i) the date on which
any such record is to be taken for the purpose of such dividend, distribution or
right, the date on which the holders of Common Stock shall be entitled to any
such dividend, distribution or right, and the amount and character thereof, and
(ii) the date on which any such reorganization, reclassification, merger,
consolidation, sale, transfer, disposition, dissolution, liquidation or winding
up is to take place and the time, if any such time is to be fixed, as of which
the holders of Common Stock shall be entitled to exchange their shares of Common
Stock for securities or other property deliverable upon such disposition,
dissolution, liquidation or winding up. Each such written notice shall be
sufficiently given if addressed to Holder at the last address of Holder
appearing on the books of the Company and delivered in accordance with Section
16(d).


<PAGE>

                  15. Authorized Shares. The Company covenants that during the
period the Warrant is outstanding, it will reserve from its authorized and
unissued Common Stock a sufficient number of shares to provide for the issuance
of the Warrant Shares upon the exercise of any purchase rights under this
Warrant. The Company further covenants that its issuance of this Warrant shall
constitute full authority to its officers who are charged with the duty of
executing stock certificates to execute and issue the necessary certificates for
the Warrant Shares upon the exercise of the purchase rights under this Warrant.
The Company will take all such reasonable action as may be necessary to assure
that such Warrant Shares may be issued as provided herein without violation of
any applicable law or regulation, or of any requirements of the principal market
upon which the Common Stock may be listed. Upon the request of Holder, the
Company will at any time during the period this Warrant is outstanding
acknowledge in writing, in form reasonably satisfactory to Holder, the
continuing validity of this Warrant and the obligations of the Company
hereunder.

                  16. Miscellaneous.

                       (a) Jurisdiction. This Warrant shall be binding upon any
successors or assigns of the Company. This Warrant shall constitute a contract
under the laws of Delaware without regard to its conflict of law, principles or
rules, and be subject to arbitration pursuant to the terms set forth in the
Letter Agreement.

                       (b) Restrictions. The holder hereof acknowledges that the
Warrant Shares acquired upon the exercise of this Warrant, if not registered,
will have restrictions upon resale imposed by state and federal securities laws.

                       (c) Notices. Any notice, request or other document
required or permitted to be given or delivered to the holder hereof by the
Company shall be delivered in accordance with the notice provisions of the
Letter Agreement.

                       (d) Successors and Assigns. Subject to applicable
securities laws, this Warrant and the rights and obligations evidenced hereby
shall inure to the benefit of and be binding upon the successors of the Company
and the successors and permitted assigns of Holder. The provisions of this
Warrant are intended to be for the benefit of all Holders from time to time of
this Warrant and shall be enforceable by any such Holder or holder of Warrant
Shares.

                       (e) Indemnification. The Company agrees to indemnify and
hold harmless Holder from and against any liabilities, obligations, losses,
damages, penalties, actions, judgments, suits, claims, costs, attorneys' fees,
expenses and disbursements of any kind which may be imposed upon, incurred by or
asserted against Holder in any manner relating to or arising out of any failure
by the Company to perform or observe in any material respect any of its
covenants, agreements, undertakings or obligations set forth in this Warrant;
provided, however, that the Company will not be liable hereunder to the extent
that any liabilities, obligations, losses, damages, penalties, actions,
judgments, suits, claims, costs, attorneys' fees, expenses or disbursements are
found in a final non-appealable judgment by a court to have resulted from
Holder's negligence, bad faith or willful misconduct.


<PAGE>

                       (f) Amendment. This Warrant may be modified or amended or
the provisions hereof waived with the written consent of the Company and the
Holder.

                       (g) Severability. Wherever possible, each provision of
this Warrant shall be interpreted in such manner as to be effective and valid
under applicable law, but if any provision of this Warrant shall be prohibited
by or invalid under applicable law, such provision shall be ineffective to the
extent of such prohibition or invalidity, without invalidating the remainder of
such provisions or the remaining provisions of this Warrant.

                       (h) Headings. The headings used in this Warrant are for
the convenience of reference only and shall not, for any purpose, be deemed a
part of this Warrant.

                  IN WITNESS WHEREOF, the Company has caused this Warrant to be
executed by its officer thereunto duly authorized.


Dated:  April 10, 2000


                                            NAM Corporation


                                            By: /s/ Roy Israel
                                                ---------------------------
                                                Roy Israel, President & CEO

<PAGE>




                               NOTICE OF EXERCISE



To:      NAM Corporation
         1010 Northern Boulevard, Suite 336
         Great Neck, New York 11021


                  (1)      The undersigned hereby elects to purchase ________
shares of Common Stock (the "Common Stock"), of NAM Corporation pursuant to the
terms of the attached Warrant, and tenders herewith payment of the exercise
price in full, together with all applicable transfer taxes, if any.

                  (2)      Please issue a certificate or certificates
representing said shares of Common Stock in the name of the undersigned or in
such other name as is specified below:


                       -------------------------------
                       (Name)

                       -------------------------------
                       (Address)
                       -------------------------------




Dated:


                                                     ---------------------------
                                                     Signature



<PAGE>





                                 ASSIGNMENT FORM

                    (To assign the foregoing warrant, execute
                   this form and supply required information.
                 Do not use this form to exercise the warrant.)



                  FOR VALUE RECEIVED,  the foregoing  Warrant and all rights
evidenced  thereby are hereby assigned to


_______________________________________________ whose address is


---------------------------------------------------------------.



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

                                                 Dated:  ______________, _______


                Holder's Signature: _____________________________

                 Holder's Address:  _____________________________

                                    _____________________________



Signature Guaranteed:  ___________________________________________




NOTE: The signature to this Assignment Form must correspond with the name as it
appears on the face of the Warrant, without alteration or enlargement or any
change whatsoever, and must be guaranteed by a bank or trust company. Officers
of corporations and those acting in an fiduciary or other representative
capacity should file proper evidence of authority to assign the foregoing
Warrant.