Document:

<PAGE>   1
                                                                   Exhibit 10.07

                                 WHITEBARN, INC.

                           2000 EQUITY INCENTIVE PLAN

                           AS ADOPTED ON MARCH 6, 2000

      1. PURPOSE. The purpose of this Plan is to provide incentives to attract,
retain and motivate eligible persons whose present and potential contributions
are important to the success of the Company, its Parent and Subsidiaries, by
offering them an opportunity to participate in the Company's future performance
through awards of Options and Restricted Stock. Capitalized terms not defined in
the text are defined in Section 22 hereof. This Plan is intended to be a written
compensatory benefit plan within the meaning of Rule 701 promulgated under the
Securities Act.

      2. SHARES SUBJECT TO THE PLAN.

            2.1 Number of Shares Available. Subject to Sections 2.2 and 17
hereof, the total number of Shares reserved and available for grant and issuance
pursuant to this Plan will be 3,530,005 Shares (or such lesser number of Shares
as permitted under Section 260.140.45 of Title 10 of the California Code of
Regulations, if applicable, or other comparable or applicable state law, if any)
plus the Shares described in the following two sentences. Subject to Sections
2.2 and 17 hereof, Shares will again be available for grant and issuance in
connection with future Awards under this Plan that: (i) are subject to issuance
upon exercise of an Option but cease to be subject to such Option for any reason
other than exercise of such Option; (ii) are issued pursuant to an Award granted
pursuant to this Plan but are repurchased by the Company at the original issue
price; or (iii) are subject to an Award that otherwise terminates without Shares
being issued.

            2.2 Adjustment of Shares. In the event that the number of
outstanding shares of the Company's Common Stock is changed by a stock dividend,
recapitalization, stock split, reverse stock split, subdivision, combination,
reclassification or similar change in the capital structure of the Company
without consideration, then (i) the number of Shares reserved for issuance under
this Plan, (ii) the Exercise Prices of and number of Shares subject to
outstanding Options and (iii) the Purchase Prices of and number of Shares
subject to other outstanding Awards will be proportionately adjusted, subject to
any required action by the Board or the shareholders of the Company and
compliance with applicable securities laws; provided, however, that fractions of
a Share will not be issued but will either be paid in cash at the Fair Market
Value of such fraction of a Share or will be rounded down to the nearest whole
Share, as determined by the Committee.

      3. ELIGIBILITY. ISOs (as defined in Section 5 hereof) may be granted only
to employees (including officers and directors who are also employees) of the
Company or of a Parent or Subsidiary of the Company. NQSOs (as defined in
Section 5 hereof) and Restricted Stock Awards may be granted to employees,
officers, directors and consultants of the Company or any Parent or Subsidiary
of the Company; provided such consultants render bona fide services not in
connection with the offer and sale of securities in a capital-raising
transaction. A person may be granted more than one Award under this Plan.

                                       1
<PAGE>   2
      4. ADMINISTRATION.

            4.1 Committee Authority. This Plan will be administered by the
Committee or the Board if no Committee is created by the Board. Subject to the
general purposes, terms and conditions of this Plan, and to the direction of the
Board, the Committee will have full power to implement and carry out this Plan.
Without limitation, the Committee will have the authority to:

            (a)   construe and interpret this Plan, any Award Agreement and any
                  other agreement or document executed pursuant to this Plan;

            (b)   prescribe, amend and rescind rules and procedures relating to
                  this Plan;

            (c)   approve persons to receive Awards;

            (d)   determine the form and terms of Awards;

            (e)   determine the number of Shares or other consideration subject
                  to Awards;

            (f)   determine whether Awards will be granted singly, in
                  combination with, in tandem with, in replacement of, or as
                  alternatives to, other Awards under this Plan or awards under
                  any other incentive or compensation plan of the Company or any
                  Parent or Subsidiary of the Company;

            (g)   grant waivers of any conditions of this Plan or any Award;

            (h)   determine the terms of vesting, exercisability and payment of
                  Awards;

            (i)   correct any defect, supply any omission, or reconcile any
                  inconsistency in this Plan, any Award, any Award Agreement,
                  any Exercise Agreement or any Restricted Stock Purchase
                  Agreement;

            (j)   determine whether an Award has been earned; and

            (k)   make all other determinations necessary or advisable for the
                  administration of this Plan.

            4.2 Committee Discretion. Unless in contravention of any express
terms of this Plan or Award, any determination made by the Committee with
respect to any Award will be made in its sole discretion either (i) at the time
of grant of the Award, or (ii) subject to Section 5.9 hereof, at any later time.
Any such determination will be final and binding on the Company and on all
persons having an interest in any Award under this Plan. The Committee may
delegate to one or more officers of the Company the authority to grant an Award
under this Plan, provided such officer or officers are members of the Board.

      5. OPTIONS. The Committee may grant Options to eligible persons described
in Section 3 hereof and will determine whether such Options will be Incentive
Stock Options within the meaning of the Code ("ISOS") or Nonqualified Stock
Options ("NQSOS"), the number of Shares subject to the Option, the Exercise
Price of the Option, the period during which the Option may be exercised, and
all other terms and conditions of the Option, subject to the following:

                                       2
<PAGE>   3
            5.1 Form of Option Grant. Each Option granted under this Plan will
be evidenced by an Award Agreement which will expressly identify the Option as
an ISO or an NQSO ("STOCK OPTION AGREEMENT"), and will be in such form and
contain such provisions (which need not be the same for each Participant) as the
Committee may from time to time approve, and which will comply with and be
subject to the terms and conditions of this Plan.

            5.2 Date of Grant. The date of grant of an Option will be the date
on which the Committee makes the determination to grant such Option, unless a
later date is otherwise specified by the Committee. The Stock Option Agreement
and a copy of this Plan will be delivered to the Participant within a reasonable
time after the granting of the Option.

            5.3 Exercise Period. Options may be exercisable immediately but
subject to repurchase pursuant to Section 11 hereof or may be exercisable within
the times or upon the events determined by the Committee as set forth in the
Stock Option Agreement governing such Option; provided, however, that no Option
will be exercisable after the expiration of ten (10) years from the date the
Option is granted; and provided further that no ISO granted to a person who
directly or by attribution owns more than ten percent (10%) of the total
combined voting power of all classes of stock of the Company or of any Parent or
Subsidiary of the Company ("TEN PERCENT SHAREHOLDER") will be exercisable after
the expiration of five (5) years from the date the ISO is granted. The Committee
also may provide for Options to become exercisable at one time or from time to
time, periodically or otherwise, in such number of Shares or percentage of
Shares as the Committee determines. Subject to earlier termination of the Option
as provided herein, each Participant who is not an officer, director or
consultant of the Company or of a Parent or Subsidiary of the Company shall have
the right to exercise an Option granted hereunder at the rate of no less than
twenty percent (20%) per year over five (5) years from the date such Option is
granted.

            5.4 Exercise Price. The Exercise Price of an Option will be
determined by the Committee when the Option is granted and may not be less than
eighty-five percent (85%) of the Fair Market Value of the Shares on the date of
grant; provided that (i) the Exercise Price of an ISO will not be less than one
hundred percent (100%) of the Fair Market Value of the Shares on the date of
grant and (ii) the Exercise Price of any Option granted to a Ten Percent
Shareholder will not be less than one hundred ten percent (110%) of the Fair
Market Value of the Shares on the date of grant. Payment for the Shares
purchased must be made in accordance with Section 7 hereof.

            5.5 Method of Exercise. Options may be exercised only by delivery to
the Company of a written stock option exercise agreement (the "EXERCISE
AGREEMENT") in a form approved by the Committee (which need not be the same for
each Participant). The Exercise Agreement will state (i) the number of Shares
being purchased, (ii) the restrictions imposed on the Shares purchased under
such Exercise Agreement, if any, and (iii) such representations and agreements
regarding Participant's investment intent and access to information and other
matters, if any, as may be required or desirable by the Company to comply with
applicable securities laws. Participant shall execute and deliver to the Company
the Exercise Agreement together with payment in full of the Exercise Price, and
any applicable taxes, for the number of Shares being purchased.

                                       3
<PAGE>   4
            5.6 Termination. Subject to earlier termination pursuant to Sections
17 and 18 hereof and notwithstanding the exercise periods set forth in the Stock
Option Agreement, exercise of an Option will always be subject to the following:

            (a)   If the Participant is Terminated for any reason other than
                  death, Disability or for Cause, then the Participant may
                  exercise such Participant's Options only to the extent that
                  such Options are exercisable upon the Termination Date.
                  Such Options must be exercised by the Participant, if at
                  all, as to all or some of the Vested Shares calculated as
                  of the Termination Date, within three (3) months after the
                  Termination Date (or within such shorter time period, not
                  less than thirty (30) days, or within such longer time
                  period, not exceeding five (5) years, after the Termination
                  Date as may be determined by the Committee, with any
                  exercise beyond three (3) months after the Termination Date
                  deemed to be an NQSO) but in any event, no later than the
                  expiration date of the Options.

            (b)   If the Participant is Terminated because of Participant's
                  death or Disability (or the Participant dies within three
                  (3) months after a Termination other than for Cause), then
                  Participant's Options may be exercised only to the extent
                  that such Options are exercisable by Participant on the
                  Termination Date.  Such options must be exercised by
                  Participant (or Participant's legal representative or
                  authorized assignee), if at all, as to all or some of the
                  Vested Shares calculated as of the Termination Date, within
                  twelve (12) months after the Termination Date (or within
                  such shorter time period, not less than six (6) months, or
                  within such longer time period, not exceeding five (5)
                  years, after the Termination Date as may be determined by
                  the Committee, with any exercise beyond (i) three (3)
                  months after the Termination Date when the Termination is
                  for any reason other than the Participant's death or
                  disability, within the meaning of Section 22(e)(3) of the
                  Code, or (ii) twelve (12) months after the Termination Date
                  when the Termination is for Participant's disability,
                  within the meaning of Section 22(e)(3) of the Code, deemed
                  to be an NQSO) but in any event no later than the
                  expiration date of the Options.

            (c)   If the Participant is terminated for Cause, then Participant's
                  Options shall expire on such Participant's Termination Date,
                  or at such later time and on such conditions as are determined
                  by the Committee.

            5.7 Limitations on Exercise. The Committee may specify a reasonable
minimum number of Shares that may be purchased on any exercise of an Option,
provided that such minimum number will not prevent Participant from exercising
the Option for the full number of Shares for which it is then exercisable.

            5.8 Limitations on ISOs. The aggregate Fair Market Value (determined
as of the date of grant) of Shares with respect to which ISOs are exercisable
for the first time by a Participant during any calendar year (under this Plan or
under any other incentive stock option plan of the Company or any Parent or
Subsidiary of the Company) will not exceed One Hundred Thousand Dollars
($100,000). If the Fair Market Value of Shares on the date of grant with respect
to which ISOs are exercisable for the first time by a Participant during any
calendar year

                                       4
<PAGE>   5
exceeds One Hundred Thousand Dollars ($100,000), then the Options for the first
One Hundred Thousand Dollars ($100,000) worth of Shares to become exercisable in
such calendar year will be ISOs and the Options for the amount in excess of One
Hundred Thousand Dollars ($100,000) that become exercisable in that calendar
year will be NQSOs. For this purpose, Options will be taken into account in the
order in which they were granted. In the event that the Code or the regulations
promulgated thereunder are amended after the Effective Date (as defined in
Section 18 hereof) to provide for a different limit on the Fair Market Value of
Shares permitted to be subject to ISOs, then such different limit will be
automatically incorporated herein and will apply to any Options granted after
the effective date of such amendment.

            5.9 Modification, Extension or Renewal. The Committee may modify,
extend or renew outstanding Options and authorize the grant of new Options in
substitution therefor, provided that any such action may not, without the
written consent of a Participant, impair any of such Participant's rights under
any Option previously granted. Any outstanding ISO that is modified, extended,
renewed or otherwise altered will be treated in accordance with Section 424(h)
of the Code. Subject to Section 5.10 hereof, the Committee may reduce the
Exercise Price of outstanding Options without the consent of Participants by a
written notice to them; provided, however, that the Exercise Price may not be
reduced below the minimum Exercise Price that would be permitted under Section
5.4 hereof for Options granted on the date the action is taken to reduce the
Exercise Price.

            5.10 No Disqualification. Notwithstanding any other provision in
this Plan, no term of this Plan relating to ISOs will be interpreted, amended or
altered, nor will any discretion or authority granted under this Plan be
exercised, so as to disqualify this Plan under Section 422 of the Code or,
without the consent of the Participant, to disqualify any Participant's ISO
under Section 422 of the Code.

      6. RESTRICTED STOCK. A Restricted Stock Award is an offer by the Company
to sell to an eligible person Shares that are subject to certain specified
restrictions. The Committee will determine to whom an offer will be made, the
number of Shares the person may purchase, the Purchase Price, the restrictions
to which the Shares will be subject, and all other terms and conditions of the
Restricted Stock Award, subject to the following:

            6.1 Form of Restricted Stock Award. All purchases under a Restricted
Stock Award made pursuant to this Plan will be evidenced by an Award Agreement
("RESTRICTED STOCK PURCHASE AGREEMENT") that will be in such form (which need
not be the same for each Participant) as the Committee will from time to time
approve, and will comply with and be subject to the terms and conditions of this
Plan. The Restricted Stock Award will be accepted by the Participant's execution
and delivery of the Restricted Stock Purchase Agreement and full payment for the
Shares to the Company within thirty (30) days from the date the Restricted Stock
Purchase Agreement is delivered to the person. If such person does not execute
and deliver the Restricted Stock Purchase Agreement along with full payment for
the Shares to the Company within such thirty (30) days, then the offer will
terminate, unless otherwise determined by the Committee.

            6.2 Purchase Price. The Purchase Price of Shares sold pursuant to a
Restricted Stock Award will be determined by the Committee and will be at least
eighty-five percent (85%) of the Fair Market Value of the Shares on the date the
Restricted Stock Award is granted or at the time the purchase is consummated,
except in the case of a sale to a Ten Percent Shareholder, in

                                       5
<PAGE>   6
which case the Purchase Price will be one hundred percent (100%) of the Fair
Market Value on the date the Restricted Stock Award is granted or at the time
the purchase is consummated. Payment of the Purchase Price must be made in
accordance with Section 7 hereof.

            6.3 Restrictions. Restricted Stock Awards may be subject to the
restrictions set forth in Section 11 hereof or such other restrictions not
inconsistent with Section 25102(o) of the California Corporations Code, if
applicable, or other comparable or applicable state law, if any.

      7. PAYMENT FOR SHARE PURCHASES.

            7.1 Payment. Payment for Shares purchased pursuant to this Plan may
be made in cash (by check) or, where expressly approved for the Participant by
the Committee and where permitted by law:

            (a)   by cancellation of indebtedness of the Company owed to the
                  Participant;

            (b)   by surrender of shares that:  (i) either (A) have been
                  owned by Participant for more than six (6) months and have
                  been paid for within the meaning of SEC Rule 144 (and, if
                  such shares were purchased from the Company by use of a
                  promissory note, such note has been fully paid with respect
                  to such shares) or (B) were obtained by Participant in the
                  public market and (ii) are clear of all liens, claims,
                  encumbrances or security interests;

            (c)   by tender of a full recourse promissory note having such
                  terms as may be approved by the Committee and bearing
                  interest at a rate sufficient to avoid imputation of income
                  under Sections 483 and 1274 of the Code; provided, however,
                  that Participants who are not employees or directors of the
                  Company will not be entitled to purchase Shares with a
                  promissory note unless the note is adequately secured by
                  collateral other than the Shares;

            (d)   by waiver of compensation due or accrued to the Participant
                  from the Company for services rendered;

            (e)   with respect only to purchases upon exercise of an Option, and
                  provided that a public market for the Company's stock exists:

                  (i)   through a "same day sale" commitment from the
                        Participant and a broker-dealer that is a member of
                        the National Association of Securities Dealers (an
                        "NASD DEALER") whereby the Participant irrevocably
                        elects to exercise the Option and to sell a portion
                        of the Shares so purchased sufficient to pay the
                        total Exercise Price, and whereby the NASD Dealer
                        irrevocably commits upon receipt of such Shares to
                        forward the total Exercise Price directly to the
                        Company; or

                  (ii)  through a "margin" commitment from the Participant
                        and an NASD Dealer whereby the Participant
                        irrevocably elects to exercise the Option and to
                        pledge the Shares so purchased to the NASD Dealer in
                        a margin account as security for a loan from the

                                       6
<PAGE>   7
                        NASD Dealer in the amount of the total Exercise Price,
                        and whereby the NASD Dealer irrevocably commits upon
                        receipt of such Shares to forward the total Exercise
                        Price directly to the Company; or

            (f)   by any combination of the foregoing.

            7.2 Loan Guarantees. The Committee may, in its sole discretion,
elect to assist the Participant in paying for Shares purchased under this Plan
by authorizing a guarantee by the Company of a third-party loan to the
Participant.

      8. WITHHOLDING TAXES.

            8.1 Withholding Generally. Whenever Shares are to be issued in
satisfaction of Awards granted under this Plan, the Company may require the
Participant to remit to the Company an amount sufficient to satisfy federal,
state and local withholding tax requirements prior to the delivery of any
certificate or certificates for such Shares. Whenever, under this Plan, payments
in satisfaction of Awards are to be made in cash by the Company, such payment
will be net of an amount sufficient to satisfy federal, state, and local
withholding tax requirements.

            8.2 Stock Withholding. When, under applicable tax laws, a
Participant incurs tax liability in connection with the exercise or vesting of
any Award that is subject to tax withholding and the Participant is obligated to
pay the Company the amount required to be withheld, the Committee may in its
sole discretion allow the Participant to satisfy the minimum withholding tax
obligation by electing to have the Company withhold from the Shares to be issued
that number of Shares having a Fair Market Value equal to the minimum amount
required to be withheld, determined on the date that the amount of tax to be
withheld is to be determined. All elections by a Participant to have Shares
withheld for this purpose will be made in accordance with the requirements
established by the Committee for such elections and be in writing in a form
acceptable to the Committee.

      9. PRIVILEGES OF STOCK OWNERSHIP.

            9.1 Voting and Dividends. No Participant will have any of the rights
of a shareholder with respect to any Shares until the Shares are issued to the
Participant. After Shares are issued to the Participant, the Participant will be
a shareholder and have all the rights of a shareholder with respect to such
Shares, including the right to vote and receive all dividends or other
distributions made or paid with respect to such Shares; provided, that if such
Shares are Restricted Stock, then any new, additional or different securities
the Participant may become entitled to receive with respect to such Shares by
virtue of a stock dividend, stock split or any other change in the corporate or
capital structure of the Company will be subject to the same restrictions as the
Restricted Stock. The Participant will have no right to retain such stock
dividends or stock distributions with respect to Unvested Shares that are
repurchased pursuant to Section 11 hereof. The Company will comply with Section
260.140.1 of Title 10 of the California Code of Regulations, if applicable, or
other comparable or applicable state law, if any, with respect to the voting
rights of Common Stock or other applicable law.

            9.2 Financial Statements. The Company will provide financial
statements to each Participant annually during the period such Participant has
Awards outstanding, or as otherwise required under Section 260.140.46 of Title
10 of the California Code of Regulations, if

                                       7
<PAGE>   8
applicable, or other comparable or applicable state law, if any. Notwithstanding
the foregoing, the Company will not be required to provide such financial
statements to Participants when issuance is limited to key employees whose
services in connection with the Company assure them access to equivalent
information.

      10. TRANSFERABILITY. Awards granted under this Plan, and any interest
therein, will not be transferable or assignable by Participant, other than by
will or by the laws of descent and distribution, and may not be made subject to
execution, attachment or similar process. During the lifetime of the Participant
an Award will be exercisable only by the Participant or Participant's legal
representative and any elections with respect to an Award may be made only by
the Participant or Participant's legal representative.

      11. RESTRICTIONS ON SHARES.

            11.1 Right of First Refusal. At the discretion of the Committee, the
Company may reserve to itself and/or its assignee(s) in the Award Agreement a
right of first refusal to purchase all Shares that a Participant (or a
subsequent transferee) may propose to transfer to a third party, unless
otherwise not permitted by Section 25102(o) of the California Corporations Code,
if applicable, or other comparable or applicable state law, if any, provided
that such right of first refusal terminates upon the Company's initial public
offering of Common Stock pursuant to an effective registration statement filed
under the Securities Act.

            11.2 Right of Repurchase. At the discretion of the Committee, the
Company may reserve to itself and/or its assignee(s) in the Award Agreement a
right to repurchase Unvested Shares held by a Participant for cash and/or
cancellation of purchase money indebtedness owed to the Company by the
Participant following such Participant's Termination at any time within the
later of ninety (90) days after the Participant's Termination Date and the date
the Participant purchases Shares under the Plan at the Participant's Exercise
Price or Purchase Price, as the case may be, provided that, unless the
Participant is an officer, director or consultant of the Company or of a Parent
or Subsidiary of the Company, such right of repurchase lapses at the rate of no
less than twenty percent (20%) per year over five (5) years from: (a) the date
of grant of the Option or (b) in the case of Restricted Stock, the date the
Participant purchases the Shares.

      12. CERTIFICATES. All certificates for Shares or other securities
delivered under this Plan will be subject to such stock transfer orders, legends
and other restrictions as the Committee may deem necessary or advisable,
including restrictions under any applicable federal, state or foreign securities
law, or any rules, regulations and other requirements of the SEC or any stock
exchange or automated quotation system upon which the Shares may be listed or
quoted.

      13. ESCROW; PLEDGE OF SHARES. To enforce any restrictions on a
Participant's Shares set forth in Section 11 hereof, the Committee may require
the Participant to deposit all certificates representing Shares, together with
stock powers or other instruments of transfer approved by the Committee,
appropriately endorsed in blank, with the Company or an agent designated by the
Company to hold in escrow until such restrictions have lapsed or terminated. The
Committee may cause a legend or legends referencing such restrictions to be
placed on the certificates. Any Participant who is permitted to execute a
promissory note as partial or full consideration for the purchase of Shares
under this Plan will be required to pledge and deposit with the Company all or
part of the Shares so purchased as collateral to secure the

                                       8
<PAGE>   9
payment of Participant's obligation to the Company under the promissory note;
provided, however, that the Committee may require or accept other or additional
forms of collateral to secure the payment of such obligation and, in any event,
the Company will have full recourse against the Participant under the promissory
note notwithstanding any pledge of the Participant's Shares or other collateral.
In connection with any pledge of the Shares, Participant will be required to
execute and deliver a written pledge agreement in such form as the Committee
will from time to time approve.

      14. EXCHANGE AND BUYOUT OF AWARDS. The Committee may, at any time or from
time to time, authorize the Company, with the consent of the respective
Participants, to issue new Awards in exchange for the surrender and cancellation
of any or all outstanding Awards. The Committee may at any time buy from a
Participant an Award previously granted with payment in cash, shares of Common
Stock of the Company (including Restricted Stock) or other consideration, based
on such terms and conditions as the Committee and the Participant may agree.

      15. SECURITIES LAW AND OTHER REGULATORY COMPLIANCE. This Plan is intended
to comply with Section 25102(o) of the California Corporations Code, if
applicable, or other comparable or applicable state law, if any. Any provision
of this Plan which is inconsistent with Section 25102(o), if applicable, or
other comparable, or applicable state law, if any, without further act or
amendment by the Company or the Board, shall be reformed to comply with such
requirements. An Award will not be effective unless such Award is in compliance
with all applicable federal and state securities laws, rules and regulations of
any governmental body, and the requirements of any stock exchange or automated
quotation system upon which the Shares may then be listed or quoted, as they are
in effect on the date of grant of the Award and also on the date of exercise or
other issuance. Notwithstanding any other provision in this Plan, the Company
will have no obligation to issue or deliver certificates for Shares under this
Plan prior to (i) obtaining any approvals from governmental agencies that the
Company determines are necessary or advisable, and/or (ii) compliance with any
exemption, completion of any registration or other qualification of such Shares
under any state or federal law or ruling of any governmental body that the
Company determines to be necessary or advisable. The Company will be under no
obligation to register the Shares with the SEC or to effect compliance with the
exemption, registration, qualification or listing requirements of any state
securities laws, stock exchange or automated quotation system, and the Company
will have no liability for any inability or failure to do so.

      16. NO OBLIGATION TO EMPLOY. Nothing in this Plan or any Award granted
under this Plan will confer or be deemed to confer on any Participant any right
to continue in the employ of, or to continue any other relationship with, the
Company or any Parent or Subsidiary of the Company or limit in any way the right
of the Company or any Parent or Subsidiary of the Company to terminate
Participant's employment or other relationship at any time, with or without
Cause.

      17. CORPORATE TRANSACTIONS.

            17.1 Assumption or Replacement of Awards by Successor or Acquiring
Corporation. In the event of (i) a merger or consolidation in which the Company
is not the surviving corporation (other than a merger or consolidation with a
wholly owned subsidiary, a reincorporation, or other transaction in which there
is no substantial change in the shareholders

                                       9
<PAGE>   10
of the corporation and the Options granted under this Plan are assumed by the
successor corporation), (ii) a dissolution or liquidation of the Company, (iii)
the sale of substantially all of the assets of the Company, or (iv) any other
transaction which qualifies as a "corporate transaction" under Section 424(a) of
the Code wherein the shareholders of the Company give up all of their equity
interest in the Company (except for the acquisition of all or substantially all
of the outstanding shares of the Company), any or all outstanding Options and
the Plan may be assumed by the successor corporation, which assumption shall be
binding on all Optionees. In the alternative, the successor corporation may
substitute an equivalent option or provide substantially similar consideration
to Optionees as was provided to shareholders (after taking into account the
existing provisions of Optionee's options, such as the exercise price and the
vesting schedule). The successor corporation may also issue, in place of
outstanding shares of the Company held by Optionee as a result of the exercise
of an Option that is subject to repurchase, substantially similar shares or
other property subject to similar repurchase restrictions no less favorable to
Optionee. In the event such successor corporation, if any, refuses to assume or
substitute the Options, as provided above, or if there is no successor
corporation, such Options shall expire in connection with such transaction at
such time and on such conditions as the Board shall determine.

            17.2 Other Treatment of Awards. Subject to any greater rights
granted to Participants under the foregoing provisions of this Section 17, in
the event of the occurrence of any transaction described in Section 17.1 hereof,
any outstanding Awards will be treated as provided in the applicable agreement
or plan of merger, consolidation, dissolution, liquidation or sale of assets.

            17.3 Assumption of Awards by the Company. The Company, from time to
time, also may substitute or assume outstanding awards granted by another
company, whether in connection with an acquisition of such other company or
otherwise, by either (i) granting an Award under this Plan in substitution of
such other company's award or (ii) assuming such award as if it had been granted
under this Plan if the terms of such assumed award could be applied to an Award
granted under this Plan. Such substitution or assumption will be permissible if
the holder of the substituted or assumed award would have been eligible to be
granted an Award under this Plan if the other company had applied the rules of
this Plan to such grant. In the event the Company assumes an award granted by
another company, the terms and conditions of such award will remain unchanged
(except that the exercise price and the number and nature of shares issuable
upon exercise of any such option will be adjusted appropriately pursuant to
Section 424(a) of the Code). In the event the Company elects to grant a new
Option rather than assuming an existing option, such new Option may be granted
with a similarly adjusted Exercise Price.

      18. ADOPTION AND SHAREHOLDER APPROVAL. This Plan will become effective on
the date that it is adopted by the Board (the "EFFECTIVE Date"). This Plan will
be approved by the shareholders of the Company consistent with applicable laws,
within twelve (12) months before or after the Effective Date. Upon the Effective
Date, the Board may grant Awards pursuant to this Plan; provided, however, that:
(i) no Option may be exercised prior to initial shareholder approval of this
Plan; (ii) no Option granted pursuant to an increase in the number of Shares
approved by the Board shall be exercised prior to the time such increase has
been approved by the shareholders of the Company; (iii) in the event that
initial shareholder approval is not obtained within the time period provided
herein, all Awards granted hereunder shall be

                                       10
<PAGE>   11
canceled, any Shares issued pursuant to any Award shall be canceled and any
purchase of Shares issued hereunder shall be rescinded; and (iv) Awards granted
pursuant to an increase in the number of Shares approved by the Board which
increase is not timely approved by shareholders shall be canceled, any Shares
issued pursuant to any such Awards shall be canceled, and any purchase of Shares
subject to any such Award shall be rescinded.

      19. TERM OF PLAN. Unless earlier terminated as provided herein, this Plan
will terminate ten (10) years from the Effective Date or, if earlier, the date
of shareholder approval.

      20. AMENDMENT OR TERMINATION OF PLAN. Subject to Section 5.9 hereof, the
Board may at any time terminate or amend this Plan in any respect, including
without limitation amendment of any form of Award Agreement or instrument to be
executed pursuant to this Plan; provided, however, that the Board will not,
without the approval of the shareholders of the Company, amend this Plan in any
manner that requires such shareholder approval pursuant to Section 25102(o) of
the California Corporations Code, if applicable, or other comparable or
applicable state law, if any, or the Code or the regulations promulgated
thereunder as such provisions apply to ISO plans.

      21. NONEXCLUSIVITY OF THE PLAN. Neither the adoption of this Plan by the
Board, the submission of this Plan to the shareholders of the Company for
approval, nor any provision of this Plan will be construed as creating any
limitations on the power of the Board to adopt such additional compensation
arrangements as it may deem desirable, including, without limitation, the
granting of stock options and other equity awards otherwise than under this
Plan, and such arrangements may be either generally applicable or applicable
only in specific cases.

      22. DEFINITIONS. As used in this Plan, the following terms will have the
following meanings:

            "AWARD" means any award under this Plan, including any Option or
Restricted Stock Award.

            "AWARD AGREEMENT" means, with respect to each Award, the signed
written agreement between the Company and the Participant setting forth the
terms and conditions of the Award, including the Stock Option Agreement and
Restricted Stock Agreement.

            "BOARD" means the Board of Directors of the Company.

            "CAUSE" means Termination because of (i) any willful, material
violation by the Participant of any law or regulation applicable to the business
of the Company or a Parent or Subsidiary of the Company, the Participant's
conviction for, or guilty plea to, a felony or a crime involving moral
turpitude, or any willful perpetration by the Participant of a common law fraud,
(ii) the Participant's commission of an act of personal dishonesty which
involves personal profit in connection with the Company or any other entity
having a business relationship with the Company, (iii) any material breach by
the Participant of any provision of any agreement or understanding between the
Company or any Parent or Subsidiary of the Company and the Participant regarding
the terms of the Participant's service as an employee, officer, director or
consultant to the Company or a Parent or Subsidiary of the Company, including
without limitation, the willful and continued failure or refusal of the
Participant to perform the material duties required of such Participant as an
employee, officer, director or consultant of the Company or a Parent or
Subsidiary of the Company, other than as a result of having a Disability, or a

                                       11
<PAGE>   12
breach of any applicable invention assignment and confidentiality agreement or
similar agreement between the Company or a Parent or Subsidiary of the Company
and the Participant, (iv) Participant's disregard of the policies of the Company
or any Parent or Subsidiary of the Company so as to cause loss, damage or injury
to the property, reputation or employees of the Company or a Parent or
Subsidiary of the Company, or (v) any other misconduct by the Participant which
is materially injurious to the financial condition or business reputation of, or
is otherwise materially injurious to, the Company or a Parent or Subsidiary of
the Company.

            "CODE" means the Internal Revenue Code of 1986, as amended.

            "COMMITTEE" means the committee created and appointed by the Board
to administer this Plan, or if no committee is created and appointed, the Board.

            "COMPANY" means WhiteBarn, Inc., or any successor corporation.

            "DISABILITY" means a disability, whether temporary or permanent,
partial or total, as determined by the Committee.

            "EXERCISE PRICE" means the price at which a holder of an Option may
purchase the Shares issuable upon exercise of the Option.

            "FAIR MARKET VALUE" means, as of any date, the value of a share of
the Company's Common Stock determined as follows:

            (a)   if such Common Stock is then quoted on the Nasdaq National
                  Market, its closing price on the Nasdaq National Market on the
                  date of determination as reported in The Wall Street Journal;

            (b)   if such Common Stock is publicly traded and is then listed on
                  a national securities exchange, its closing price on the date
                  of determination on the principal national securities exchange
                  on which the Common Stock is listed or admitted to trading as
                  reported in The Wall Street Journal;

            (c)   if such Common Stock is publicly traded but is not quoted on
                  the Nasdaq National Market nor listed or admitted to trading
                  on a national securities exchange, the average of the closing
                  bid and asked prices on the date of determination as reported
                  by The Wall Street Journal (or, if not so reported, as
                  otherwise reported by any newspaper or other source as the
                  Board may determine); or

            (d)   if none of the foregoing is applicable, by the Committee in
                  good faith.

            "OPTION" means an award of an option to purchase Shares pursuant to
Section 5 hereof.

            "PARENT" means any corporation (other than the Company) in an
unbroken chain of corporations ending with the Company if each of such
corporations other than the Company owns stock representing fifty percent (50%)
or more of the total combined voting power of all classes of stock in one of the
other corporations in such chain.

            "PARTICIPANT" means a person who receives an Award under this Plan.

                                       12
<PAGE>   13
            "PLAN" means this WhiteBarn, Inc. 2000  Equity Incentive Plan, as
amended from time to time.

            "PURCHASE PRICE" means the price at which a Participant may purchase
Restricted Stock.

            "RESTRICTED STOCK" means Shares purchased pursuant to a Restricted
Stock Award.

            "RESTRICTED STOCK AWARD" means an award of Shares pursuant to
Section 6 hereof.

            "SEC" means the Securities and Exchange Commission.

            "SECURITIES ACT" means the Securities Act of 1933, as amended.

            "SHARES" means shares of the Company's Common Stock reserved for
issuance under this Plan, as adjusted pursuant to Sections 2 and 17 hereof, and
any successor security.

            "SUBSIDIARY" means any corporation (other than the Company) in an
unbroken chain of corporations beginning with the Company if each of the
corporations other than the last corporation in the unbroken chain owns stock
representing fifty percent (50%) or more of the total combined voting power of
all classes of stock in one of the other corporations in such chain.

            "TERMINATION" or "TERMINATED" means, for purposes of this Plan with
respect to a Participant, that the Participant has for any reason ceased to
provide services as an employee, officer, director or consultant to the Company
or a Parent or Subsidiary of the Company. A Participant will not be deemed to
have ceased to provide services in the case of (i) sick leave, (ii) military
leave, or (iii) any other leave of absence approved by the Committee, provided
that such leave is for a period of not more than ninety (90) days (a) unless
reinstatement (or, in the case of an employee with an ISO, reemployment) upon
the expiration of such leave is guaranteed by contract or statute, or (b) unless
provided otherwise pursuant to formal policy adopted from time to time by the
Company's Board and issued and promulgated in writing. In the case of any
Participant on (i) sick leave, (ii) military leave or (iii) an approved leave of
absence, the Committee may make such provisions respecting suspension of vesting
of the Award while on leave from the Company or a Parent or Subsidiary of the
Company as it may deem appropriate, except that in no event may an Option be
exercised after the expiration of the term set forth in the Stock Option
Agreement. The Committee will have sole discretion to determine whether a
Participant has ceased to provide services and the effective date on which the
Participant ceased to provide services (the "TERMINATION DATE").

            "UNVESTED SHARES" means "Unvested Shares" as defined in the Award
Agreement.

            "VESTED SHARES" means "Vested Shares" as defined in the Award
Agreement.

                                       13
<PAGE>   14

                                                                    NO. ________

                                 WHITEBARN, INC.
                           2000 EQUITY INCENTIVE PLAN

                             STOCK OPTION AGREEMENT

        This Stock Option Agreement (the "AGREEMENT") is made and entered into
as of the date of grant set forth below (the "DATE OF GRANT") by and between
Whitebarn, Inc., an Illinois corporation (the "COMPANY"), and the participant
named below (the "PARTICIPANT"). Capitalized terms not defined herein shall have
the meaning ascribed to them in the Company's 2000 Equity Incentive Plan (the
"PLAN").

PARTICIPANT:
                                  ----------------------------------------------
SOCIAL SECURITY NUMBER:
                                  ----------------------------------------------
ADDRESS:
                                  ----------------------------------------------

                                  ----------------------------------------------
TOTAL OPTION SHARES:
                                  ----------------------------------------------
EXERCISE PRICE PER SHARE:
                                  ----------------------------------------------
DATE OF GRANT:
                                  ----------------------------------------------
FIRST VESTING DATE:
                                  ----------------------------------------------
EXPIRATION DATE:
                                  ----------------------------------------------
                                  (unless earlier terminated under Section 5.6
                                  of the Plan)

TYPE OF STOCK OPTION
(CHECK ONE):                        [X]  INCENTIVE STOCK OPTION
                                    [ ]  NONQUALIFIED STOCK OPTION

        1.      GRANT OF OPTION. The Company hereby grants to Participant an
option (this "OPTION") to purchase the total number of shares of Common Stock of
the Company set forth above as Total Option Shares (the "SHARES") at the
Exercise Price Per Share set forth above (the "EXERCISE PRICE"), subject to all
of the terms and conditions of this Agreement and the Plan. If designated as an
Incentive Stock Option above, the Option is intended to qualify as an "incentive
stock option" (the "ISO") within the meaning of Section 422 of the Internal
Revenue Code of 1986, as amended (the "CODE").

        2.      EXERCISE PERIOD.

               2.1 Exercise Period of Option. This Option is immediately
exercisable although the Shares issued upon exercise of the Option will be
subject to the restrictions on transfer and Repurchase Options set forth in
Sections 7, 9 and 18 below. Provided Participant continues to provide services
to the Company or any Subsidiary or Parent of the Company, the Option will
become vested as to portions of the Shares as follows: (i) this Option shall not
vest with respect to any of the Shares until September 8, 2000 (the "FIRST
VESTING DATE"); (ii) on the First Vesting Date the Option will become vested as
to twelve and one half percent (12.5%) of

<PAGE>   15

the Shares; and (iii) thereafter at the end of each full succeeding month the
Option will become vested as to 2.0833% percent of the Shares until the Shares
are vested with respect to one hundred percent (100%) of the Shares. If
application of the vesting percentage causes a fractional share, such share
shall be rounded down to the nearest whole share for each month except for the
last month in such vesting period, at the end of which last month this Option
shall become vested for the full remainder of the Shares.

               2.2 Vesting of Options. Shares that are vested pursuant to the
schedule set forth in Section 2.1 are "VESTED SHARES." Shares that are not
vested pursuant to the schedule set forth in Section 2.1 are "UNVESTED SHARES."

               2.3 Expiration. The Option shall expire on the Expiration Date
set forth above or earlier as provided in Section 3 below or pursuant to Section
5.6 of the Plan.

        3.     TERMINATION.

               3.1 Termination for Any Reason Except Death, Disability or Cause.
If Participant is Terminated for any reason, except death, Disability or for
Cause, the Option, to the extent (and only to the extent) that it would have
been exercisable by Participant on the Termination Date, may be exercised by
Participant no later than three (3) months after the Termination Date, but in
any event no later than the Expiration Date.

               3.2 Termination Because of Death or Disability. If Participant is
Terminated because of death or Disability of Participant (or Participant dies
within three (3) months of Termination when Termination is for any reason other
than Participant's Disability or for Cause), the Option, to the extent that it
is exercisable by Participant on the Termination Date, may be exercised by
Participant (or Participant's legal representative) no later than twelve (12)
months after the Termination Date, but in any event no later than the Expiration
Date. Any exercise beyond (i) three (3) months after the Termination Date when
the Termination is for any reason other than the Participant's death or
disability, within the meaning of Section 22(e)(3) of the Code; or (ii) twelve
(12) months after the Termination Date when the termination is for Participant's
disability, within the meaning of Section 22(e)(3) of the Code, is deemed to be
an NQSO.

               3.3 Termination for Cause. If Participant is Terminated for
Cause, then the Option will expire on Participant's Termination Date, or at such
later time and on such conditions as are determined by the Committee.

               3.4 No Obligation to Employ. Nothing in the Plan or this
Agreement shall confer on Participant any right to continue in the employ of, or
other relationship with, the Company or any Parent or Subsidiary of the Company,
or limit in any way the right of the Company or any Parent or Subsidiary of the
Company to terminate Participant's employment or other relationship at any time,
with or without Cause.

        4.     MANNER OF EXERCISE.

               4.1 Stock Option Exercise Agreement. To exercise this Option,
Participant (or in the case of exercise after Participant's death or incapacity,
Participant's executor,

<PAGE>   16

administrator, heir or legatee, as the case may be) must deliver to the Company
an executed stock option exercise agreement in the form attached hereto as
Exhibit A, or in such other form as may be approved by the Committee from time
to time (the "EXERCISE AGREEMENT"), which shall set forth, inter alia, (i)
Participant's election to exercise the Option, (ii) the number of Shares being
purchased, (iii) any restrictions imposed on the Shares and (iv) any
representations, warranties and agreements regarding Participant's investment
intent and access to information as may be required by the Company to comply
with applicable securities laws. If someone other than Participant exercises the
Option, then such person must submit documentation reasonably acceptable to the
Company verifying that such person has the legal right to exercise the Option.

               4.2 Limitations on Exercise. The Option may not be exercised
unless such exercise is in compliance with all applicable federal and state
securities laws, as they are in effect on the date of exercise. The Option may
not be exercised as to fewer than one hundred (100) Shares unless it is
exercised as to all Shares as to which the Option is then exercisable.

               4.3 Payment. The Exercise Agreement shall be accompanied by full
payment of the Exercise Price for the shares being purchased in cash (by check),
or where permitted by law:

                        (a)     by cancellation of indebtedness of the Company
                                to the Participant;

                        (b)     by surrender of shares of the Company's Common
                                Stock that (i) either (A) have been owned by
                                Participant for more than six (6) months and
                                have been paid for within the meaning of SEC
                                Rule 144 (and, if such shares were purchased
                                from the Company by use of a promissory note,
                                such note has been fully paid with respect to
                                such shares); or (B) were obtained by
                                Participant in the open public market; and (ii)
                                are clear of all liens, claims, encumbrances or
                                security interests;

                        (c)     by waiver of compensation due or accrued to
                                Participant for services rendered;

                        (d)     provided that a public market for the Company's
                                stock exists: (i) through a "same day sale"
                                commitment from Participant and a broker-dealer
                                that is a member of the National Association of
                                Securities Dealers (an "NASD DEALER") whereby
                                Participant irrevocably elects to exercise the
                                Option and to sell a portion of the Shares so
                                purchased sufficient to pay for the total
                                Exercise Price and whereby the NASD Dealer
                                irrevocably commits upon receipt of such Shares
                                to forward the total Exercise Price directly to
                                the Company, or (ii) through a "margin"
                                commitment from Participant and an NASD Dealer
                                whereby Participant irrevocably elects to
                                exercise the Option and to pledge the Shares so
                                purchased to the NASD Dealer in a margin account
                                as security for a loan from the NASD Dealer in
                                the amount of the total Exercise Price, and
                                whereby the NASD Dealer irrevocably commits upon
                                receipt of

<PAGE>   17

                                such Shares to forward the total Exercise Price
                                directly to the Company; or

                        (e)     by any combination of the foregoing.

               4.4 Tax Withholding. Prior to the issuance of the Shares upon
exercise of the Option, Participant must pay or provide for any applicable
federal, state and local withholding obligations of the Company. If the
Committee permits, Participant may provide for payment of withholding taxes upon
exercise of the Option by requesting that the Company retain Shares with a Fair
Market Value equal to the minimum amount of taxes required to be withheld. In
such case, the Company shall issue the net number of Shares to the Participant
by deducting the Shares retained from the Shares issuable upon exercise.

               4.5 Issuance of Shares. Provided that the Exercise Agreement and
payment are in form and substance satisfactory to counsel for the Company, the
Company shall issue the Shares registered in the name of Participant,
Participant's authorized assignee, or Participant's legal representative, and
shall deliver certificates representing the Shares with the appropriate legends
affixed thereto.

        5.      NOTICE OF DISQUALIFYING DISPOSITION OF ISO SHARES. If the Option
is an ISO, and if Participant sells or otherwise disposes of any of the Shares
acquired pursuant to the ISO on or before the later of (i) the date two (2)
years after the Date of Grant, and (ii) the date one (1) year after transfer of
such Shares to Participant upon exercise of the Option, Participant shall
immediately notify the Company in writing of such disposition. Participant
agrees that Participant may be subject to income tax withholding by the Company
on the compensation income recognized by Participant from the early disposition
by payment in cash or out of the current wages or other compensation payable to
Participant.

        6.      COMPLIANCE WITH LAWS AND REGULATIONS. The Plan and this
Agreement are intended to comply with Section 25102(o) of the California
Corporations Code, if applicable, and any regulations relating thereto or other
comparable, applicable state law, if any. Any provision of this Agreement which
is inconsistent with Section 25102(o), if applicable, or other comparable or
applicable state law, if any, or any regulations relating thereto shall, without
further act or amendment by the Company or the Board, be reformed to comply with
the requirements of Section 25102(o) if applicable, or other comparable,
applicable state law, if any, and any regulations relating thereto. The exercise
of the Option and the issuance and transfer of Shares shall be subject to
compliance by the Company and Participant with all applicable requirements of
federal and state securities laws and with all applicable requirements of any
stock exchange on which the Company's Common Stock may be listed at the time of
such issuance or transfer. Participant understands that the Company is under no
obligation to register or qualify the Shares with the SEC, any state securities
commission or any stock exchange to effect such compliance.

        7.      NONTRANSFERABILITY OF OPTION. The Option may not be transferred
in any manner other than by will or by the laws of descent and distribution and
may be exercised during the lifetime of Participant only by Participant or in
the event of Participant's incapacity, by

<PAGE>   18

Participant's legal representative. The terms of the Option shall be binding
upon the executors, administrators, successors and assigns of Participant.

        8.     [RESERVED]

        9.      COMPANY'S RIGHT OF FIRST REFUSAL. Before any Vested Shares held
by Participant or any transferee of such Vested Shares may be sold or otherwise
transferred (including without limitation a transfer by gift or operation of
law), the Company and/or its assignee(s) shall have an assignable right of first
refusal to purchase the Vested Shares to be sold or transferred on the terms and
conditions set forth in the Exercise Agreement (the "RIGHT OF FIRST REFUSAL").
The Company's Right of First Refusal will terminate when the Company's
securities become publicly traded.

        10.     TAX CONSEQUENCES. Set forth below is a brief summary as of the
Effective Date of the Plan of some of the federal and California tax
consequences of exercise of the Option and disposition of the Shares. THIS
SUMMARY IS NECESSARILY INCOMPLETE, AND THE TAX LAWS AND REGULATIONS ARE SUBJECT
TO CHANGE. PARTICIPANT SHOULD CONSULT A TAX ADVISER BEFORE EXERCISING THE OPTION
OR DISPOSING OF THE SHARES.

               10.1 Exercise of ISO. If the Option qualifies as an ISO, there
will be no regular federal or California income tax liability upon the exercise
of the Option, although the excess, if any, of the Fair Market Value of the
Shares on the date of exercise over the Exercise Price will be treated as a tax
preference item for federal alternative minimum tax purposes and may subject the
Participant to the alternative minimum tax in the year of exercise.

               10.2 Exercise of Nonqualified Stock Option. If the Option does
not qualify as an ISO, there may be a regular federal and California income tax
liability upon the exercise of the Option. Participant will be treated as having
received compensation income (taxable at ordinary income tax rates) equal to the
excess, if any, of the Fair Market Value of the Shares on the date of exercise
over the Exercise Price. If Participant is a current or former employee of the
Company, the Company may be required to withhold from Participant's compensation
or collect from Participant and pay to the applicable taxing authorities an
amount equal to a percentage of this compensation income at the time of
exercise.

               10.3 Disposition of Shares. The following tax consequences may
apply upon disposition of the Shares.

                      (a) Incentive Stock Options. If the Shares are held for
more than twelve (12) months after the date of the transfer of the Shares
pursuant to the exercise of an ISO and are disposed of more than two (2) years
after the Date of Grant, any gain realized on disposition of the Shares will be
treated as long term capital gain for federal income tax purposes. If Shares
purchased under an ISO are disposed of within the applicable one (1) year or two
(2) year period, any gain realized on such disposition will be treated as
compensation income (taxable at ordinary income rates) to the extent of the
excess, if any, of the Fair Market Value of the Shares on the date of exercise
over the Exercise Price.

<PAGE>   19

                      (b) Nonqualified Stock Options. If the Shares are held for
more than twelve (12) months after the date of the transfer of the Shares
pursuant to the exercise of an NQSO, any gain realized on disposition of the
Shares will be treated as long term capital gain.

                      (c) Withholding. The Company may be required to withhold
from the Participant's compensation or collect from the Participant and pay to
the applicable taxing authorities an amount equal to a percentage of this
compensation income.

               10.4. Section 83(b) Election for Unvested Shares. With respect to
Unvested Shares, which are subject to the Repurchase Option, unless an election
is filed by the Participant with the Internal Revenue Service (and, if
necessary, the proper state taxing authorities), within 30 days of the purchase
of the Unvested Shares, electing pursuant to Section 83(b) of the Code (and
similar state tax provisions, if applicable) to be taxed currently on any
difference between the Exercise Price of the Unvested Shares and their Fair
Market Value on the date of purchase, there may be a recognition of taxable
income (including, where applicable, alternative minimum taxable income) to the
Participant, measured by the excess, if any, of the Fair Market Value of the
Unvested Shares at the time they cease to be Unvested Shares, over the Exercise
Price of the Unvested Shares.

        11.     PRIVILEGES OF STOCK OWNERSHIP. Participant shall not have any of
the rights of a shareholder with respect to any Shares until the Shares are
issued to Participant.

        12.     INTERPRETATION. Any dispute regarding the interpretation of this
Agreement shall be submitted by Participant or the Company to the Committee for
review. The resolution of such a dispute by the Committee shall be final and
binding on the Company and Participant.

        13.     ENTIRE AGREEMENT. The Plan is incorporated herein by reference.
This Agreement and the Plan constitute the entire agreement of the parties and
supersede all prior undertakings and agreements with respect to the subject
matter hereof.

        14.     NOTICES. Any notice required to be given or delivered to the
Company under the terms of this Agreement shall be in writing and addressed to
the Corporate Secretary of the Company at its principal corporate offices. Any
notice required to be given or delivered to Participant shall be in writing and
addressed to Participant at the address indicated above or to such other address
as such party may designate in writing from time to time to the Company. All
notices shall be deemed to have been given or delivered upon: (i) personal
delivery; (ii) three (3) days after deposit in the United States mail by
certified or registered mail (return receipt requested); (iii) one (1) business
day after deposit with any return receipt express courier (prepaid); or (iv) one
(1) business day after transmission by facsimile, rapifax or telecopier.

        15.     SUCCESSORS AND ASSIGNS. The Company may assign any of its rights
under this Agreement including its rights to purchase Shares under the
Repurchase Option and the Right of First Refusal. This Agreement shall be
binding upon and inure to the benefit of the successors and assigns of the
Company. Subject to the restrictions on transfer set forth herein, this
Agreement shall be binding upon Participant and Participant's heirs, executors,
administrators, legal representatives, successors and assigns.

<PAGE>   20

        16.     SEVERABILITY. If any provision of this Agreement is determined
by a court of law to be illegal or unenforceable, then such provision will be
enforced to the maximum extent possible and the other provisions will remain
fully effective and enforceable.

        17.     ACCEPTANCE. Participant hereby acknowledges receipt of a copy of
the Plan and this Agreement. Participant has read and understands the terms and
provisions thereof, and accepts the Option subject to all the terms and
conditions of the Plan and this Agreement. Participant acknowledges that there
may be adverse tax consequences upon exercise of the Option or disposition of
the Shares and that Participant should consult a tax adviser prior to such
exercise or disposition.

        18.     COMPANY'S REPURCHASE OPTION FOR UNVESTED SHARES. The Company, or
its assignee, shall have the option to repurchase Participant's Unvested Shares
(as defined in Section 2.2 of this Agreement) on the terms and conditions set
forth in the Exercise Agreement (the "REPURCHASE OPTION") if Participant is
Terminated (as defined in the Plan) for any reason, or no reason, including
without limitation Participant's death, Disability (as defined in the Plan),
voluntary resignation or termination by the Company. Notwithstanding the
foregoing, the Company shall retain the Repurchase Option for Unvested Shares
only as to that number of Unvested Shares (whether or not exercised) that
exceeds the number of shares which remain unexercised.

<PAGE>   21

        IN WITNESS WHEREOF, the Company has caused this Agreement to be executed
in triplicate by its duly authorized representative and Participant has executed
this Agreement in triplicate, effective as of the Date of Grant.

WHITEBARN, INC.                        PARTICIPANT

By:
   ---------------------------         -----------------------------
                                       (Signature)

------------------------------         -----------------------------
(Please print name)                    (Please print name)

------------------------------
(Please print title)<PAGE>   1
                                                                     EXHIBIT 4.2

                                  COMPANY LOGO

                           ARENA PHARMACEUTICALS, INC.
              INCORPORATED UNDER THE LAWS OF THE STATE OF DELAWARE

                                             See Reverse For Certain Definitions

                                                               CUSIP 040047 10 2

This Certifies that

is the record holder of

    FULLY PAID AND NONASSESSABLE SHARES OF COMMON STOCK, $.0001 PAR VALUE, OF

                           ARENA PHARMACEUTICALS, INC.

Transferable on the books of the Corporation by the holder hereof in person or
by duly authorized attorney upon surrender of this Certificate properly
endorsed. This certificate is not valid until countersigned by the Transfer
Agent and registered by the Registrar.

     WITNESS the facsimile seal of the Corporation and the facsimile signatures
of its duly authorized officers.

Dated:

Sr. Vice President, Operations                                     President and
General Counsel and Secretary                            Chief Executive Officer

                                                   COUNTERSIGNED AND REGISTERED:

                                      AMERICAN SECURITIES TRANSFER & TRUST, INC.
                                           P.O. Box 1506, Denver, Colorado 80201

                                                                              BY
                               TRANSFER AGENT AND REGISTRAR AUTHORIZED SIGNATURE

                   ARENA PHARMACEUTICALS, INC. CORPORATE SEAL

<PAGE>   2

                           ARENA PHARMACEUTICALS, INC.

     The Corporation shall furnish without charge to each stockholder who so
requests the powers, designations, preferences and relative, participating,
optional, or other special rights of each class of stock or series thereof and
the qualifications, limitations or restrictions of such preferences and/or
rights. Such requests shall be made to the Corporation's Secretary at the
principal office of the Corporation.

     KEEP THIS CERTIFICATE IN A SAFE PLACE. IF IT IS LOST, STOLEN, OR DESTROYED
THE CORPORATION WILL REQUIRE A BOND OF INDEMNITY AS A CONDITION TO THE ISSUANCE
OF A REPLACEMENT CERTIFICATE.

     The following abbreviations, when used in the inscription on the face of
this certificate, shall be construed as though they were written out in full
according to applicable laws or regulations:

TEN COM -         as tenants in common
TEN ENT -         as tenants by the entireties
JT TEN -          as joint tenants with right of survivorship and not as tenants
                  in common

UNIF GIFT MIN ACT -            Custodian
                         (Cust)           (Minor)
                         under Uniform Gifts to Minors Act
                                                          (State)

UNIF TRF MIN ACT -            Custodian (until age             )
                               (Cust)
                                 under Uniform Transfers to Minors Act
                           (Minor)                                      (State)

                    Additional abbreviations may also be used though not in the
                    above list.

FOR VALUE RECEIVED,                        hereby sell, assign and transfer unto

PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER OF ASSIGNEE

  (Please Print Or Typewrite Name And Address, Including Zip Code, Of Assignee)

         Shares of the common stock represented by the within Certificate, and
do hereby irrevocably constitute and appoint                 Attorney to
transfer the said stock on the books of the within named Corporation with the
full power of substitution in the premises.

Dated

                                           X
                                             NOTICE: The Signature(S) To This
                                             Assignment Must Correspond With
                                             The Name(S) As Written Upon The
                                             Face Of The Certificate In Every
                                             Particular, Without Alteration Or
                                             Enlargement Or Any Change Whatever.

Signature(s) Guaranteed

By

The Signature(S) Must Be Guaranteed By An
Eligible Guarantor Institution (Banks,
Stockbrokers, Savings And Loan Associations
And Credit Unions With Membership In An
Approved Signature Guarantee Medallion Program),
Pursuant To S.E.C. Rule 17Ad-15.

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00012-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00012-of-00352.parquet"}]]