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                                                                    Exhibit 10.1


                              AMENDED AND RESTATED
                        MANAGEMENT SHAREHOLDERS AGREEMENT


                  THIS AMENDED AND RESTATED MANAGEMENT SHAREHOLDERS AGREEMENT
dated as of November 15, 1996 amends and restates in its entirety the Amended
and Restated Management Shareholders Agreement dated May 31, 1995, as amended by
Amendment No. 1 thereto dated as of December 8, 1995 (as so amended, the
"Original Agreement"), among ProSource, Inc., formerly known as Onex
Distribution, Inc., a Delaware corporation (the "Corporation"), Onex DHC LLC, a
Wyoming limited liability company ("Onex"), as successor-in-interest (with
respect to the shares of the Common Stock of the Corporation) to Onex U.S.
Investments, Inc., and the individuals named from time to time on Schedule I to
this Agreement (each a "Management Holder" and collectively the "Management
Holders").

                                    RECITALS

                  A. The parties desire to amend and restate the Original
Agreement in contemplation of the proposed initial public offering (the
"Offering") of shares of the Corporation's Class A Common Stock (as hereinafter
defined).

                  B. Prior to commencement of the Offering, (i) the Corporation
intends to file a restated certificate of incorporation (the "Restated
Certificate of Incorporation"), providing for, among other things, two classes
of authorized common stock, Class A Common Stock, par value $.01 per share
("Class A Common Stock"), and Class B Common Stock, par value $.01 per share
("Class B Common Stock"), and (ii) all of the Corporation's outstanding shares
of common stock, par value $.01 per share ("Common Stock"), will be converted
into shares of Class B Common Stock.

                  C. The powers, preferences, rights, limitations and
restrictions of the Class B Common Stock, including certain provisions with
respect to transfer thereof and conversion into shares of Class A Common Stock,
are set forth in the Restated Certificate of Incorporation.

                  D. Each of the Management Holders is an employee of the
Corporation or any direct or indirect subsidiary of the Corporation (each a
"Subsidiary", collectively, the "Subsidiaries") and purchased shares of Common
Stock from the Corporation prior to the date of this Agreement. As used herein,
the term "Shares" shall mean such shares of Common Stock, the shares of Class B
Common Stock issued or to be issued upon conversion of Common Stock, and any
shares of Class A Common Stock issued upon conversion of Class B Common Stock.

                  The parties hereby agree as follows:
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1.       RESTRICTIONS ON TRANSFER OF SHARES

         1.1 REPRESENTATION. Each of the Management Holders represents and
agrees that the Management Shares owned by him were acquired for his own account
and will not be transferred in violation of this Agreement, the securities laws
of the United States, or any other applicable law.

         1.2 RESTRICTIONS. A Management Holder may transfer Management Shares as
a whole or in part only if such transfer is permitted by and made in accordance
with the terms of this Agreement. Any purported transfer in any manner contrary
to the terms of this Agreement shall be null and void. For purposes of this
Agreement, the term "transfer" shall mean any sale, exchange, assignment, gift,
bequest, pledge, creation of a lien or security interest or other disposition or
encumbrance of any kind, whether voluntary or involuntary or by operation of
law, affecting title to or possession of the Management Shares. The Corporation
may refuse to register any transfer of Shares that would violate this Agreement,
the securities laws of the United States, or any other applicable law, and may,
as a condition to registration of such transfer, require the transferor to
furnish to the Corporation an opinion of counsel reasonably acceptable to the
Corporation as to compliance with the foregoing.

         1.3 PLEDGE OF SHARES AS SECURITY. Each of the Management Holders may
finance up to 66 2/3% of the purchase price of such Holder's Shares and may
pledge such Shares to the lender to secure the financing or to any affiliate of
the Corporation that guarantees repayment of any loan made to finance the
purchase of Shares if the lender or guarantor agrees in writing to be bound by
this Agreement.

         1.4 SALES FREE OF ENCUMBRANCES. Upon the transfer of Management Shares
pursuant to this Agreement, the Management Holder shall discharge any
indebtedness permitted by Section 1.3 and deliver to the purchaser the share
certificates representing such Management Shares free and clear of any pledge,
lien, security interest or other encumbrance of any kind. If the Management
Holder fails to comply with the preceding sentence, the purchaser may withhold
from the purchase price an amount equal to the indebtedness secured by any such
pledge, lien, security interest or other encumbrance or, if the amount of such
indebtedness is not known by the purchaser, an amount equal to the purchaser's
good faith estimate thereof (no limitation of any other remedy available to the
purchaser being intended) and apply such withheld amount to extinguish such
debt. Any such payment of such withheld amount shall discharge the purchaser's
obligation to make payment for the purchased shares to the extent of such
withheld amount. If a selling Management Holder fails to deliver certificates
representing Management Shares being sold as required at the closing of such
sale, the purchaser may deposit the purchase price therefor with the Corporation
and, upon such deposit, those certificates shall be deemed cancelled and of no
effect (no limitation of any other remedy available to the purchaser being
intended).


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2.       SALE OR TRANSFER OF MANAGEMENT SHARES

         2.1 TRANSFER TO MANAGEMENT HOLDER'S FAMILY. A Management Holder may
transfer Management Shares to his parents, siblings, spouse, or issue or to a
trust or custodianship for the exclusive benefit of himself or any of them (each
a "Family Group Member"); provided that any such transferee agrees in writing to
be bound by the provisions of this Agreement that bind the transferor Management
Holder.

         2.2 SALE TO MANAGEMENT HOLDERS OR OTHER MANAGEMENT EMPLOYEES. A
Management Holder may transfer Management Shares to either another Management
Holder or to a management employee of the Corporation or a Subsidiary who is
acceptable to the Board of Directors of the Corporation if (a) due to hardship
or unusual circumstances, such Management Holder determines that it is in his
best interest to effect a transfer of his Management Shares and (b) the
Corporation's Board of Directors approves the same. A Management Holder who
desires to transfer Management Shares in accordance with this Section 2.2 shall
give the Corporation notice thereof ("Notice"), attaching thereto a copy of a
bona fide written offer to purchase such Shares for cash ("Offer"). The
Corporation or a subsidiary designated by it shall have the option, exercisable
by notice to the Management Holder given within 30 days after the date of
receipt of the Notice by the Corporation, to purchase all or any portion of the
Management Shares proposed to be sold pursuant to the Offer for the same price
per share and on the same terms as the Offer. If the Corporation or its designee
does not exercise such option within such 30-day period and the Board of
Directors of the Corporation consents to the proposed sale, the Management
Holder shall have the right at any time within 60 days after the expiration of
the 30-day option period provided for in this Section, to sell the Management
Shares as to which the option was not exercised to the proposed offeree in
accordance with the terms of the Offer; any transferee shall, by its purchase of
such Shares and acceptance of the certificates therefor be deemed to agree to,
and shall agree in writing to be bound by, the provisions of this Agreement. If
the Management Shares as to which the option was not exercised remain unsold at
the end of such 60-day period, such Management Shares may not thereafter be
transferred unless the Management Holder complies with this Section 2.2 again.

         2.3 SALE: CORPORATION IS A PUBLIC COMPANY. Notwithstanding Section 2.2,
if the Corporation is a Public Company, a Management Holder may sell during any
90-day period up to the greater of (a) five Shares (subject to adjustment to
reflect the effect of stock splits, combinations and the like effected after the
date of the Original Agreement) and (b) 5% of the sum of (i) the Management
Holder's Shares then held by him and (ii) the Management Holder's Shares
previously sold by him pursuant to this Section 2.3, except that no such sales
shall be made within 180 days after any offering of securities registered under
the 1933 Act that involves shares of the same class as Management Shares. Any
such sale or sales shall be through the facilities of any securities exchange on
which the Management Shares may then be listed and shall be made in a manner
that complies with applicable securities law and regulations. Such sales may not
be made, however, unless the Management Holder gives the Corporation written
notice of its intention to sell not less than five and not more than ten
business days before

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effecting any sale ("Market Sale Notice") and offers to sell to it all or any
part of that number of Management Shares (no partial purchase that would result
in the remaining Shares offered to be sold constituting an odd lot shall be
permitted) that it proposes to sell, at a price equal to the Market Price Per
Share (as defined in Section 11.4). The Corporation (or, at the Corporation's
option, a subsidiary of the Corporation) may accept such offer by giving notice
to the Management Holder within seven days after receipt of such Market Sale
Notice by the Corporation, which notice shall designate the number of Management
Shares to be purchased. The Management Holder shall thereupon be bound to sell
such Management Shares to the Corporation or a subsidiary of the Corporation, as
the case may be, and the Corporation or a subsidiary of the Corporation, as the
case may be, shall be obligated to buy such Management Shares. Notwithstanding
the foregoing, no Management Holder shall sell more than 50% of the sum of (x)
the Management Holder's Shares then held by him and (y) the Management Holder's
Shares previously sold by him pursuant to this Section 2.3 without the prior
approval of the Board of Directors of the Corporation.

         2.4 SALE UPON TERMINATION OF EMPLOYMENT; CORPORATION IS NOT A PUBLIC
COMPANY. If a Management Holder ceases to be employed in a full-time capacity by
the Corporation or a Subsidiary at any time when the Corporation is not a Public
Company, the Management Shares owned by such Management Holder shall be
transferred as follows:

             (a) Upon termination without cause or as a result of death,
retirement, or Disability, the Corporation shall purchase, and the Management
Holder shall sell, all of the Management Shares owned by such Management Holder
for a purchase price equal to Book Value Per Share multiplied by the number of
Management Shares owned by such Management Holder (the "Initial Section 2.4(a)
Payment"). However, if the Management Holder's employment is terminated by the
Corporation or a Subsidiary (i) other than for cause and (ii) as a result of the
planned restructuring or consolidation of the Corporation and its subsidiaries
and the Corporation has achieved its plan objectives through the date of
termination, the Initial Section 2.4(a) Payment shall equal the greater of
$1,000 per share or the then current Book Value Per Share. If the Corporation
effects any offering of securities registered under the 1933 Act that involves
an offering of shares of the same class as Management Shares within four months
after the termination of the Management Holder's employment, the purchase price
per Share shall be increased by an amount equal to the excess, if any, of the
public offering price per Share (after deduction of any applicable underwriter's
commissions or discounts) over the Book Value Per Share used in calculating the
original purchase price, less interest at the Prime Rate on the portion of the
purchase price previously paid in cash (the "Additional Section 2.4(a)
Payment"). Subject to the limitations set forth in Section 2.4(c), the Initial
Section 2.4(a) Payments shall be paid in cash at the closing of the purchase and
sale and Additional Section 2.4(a) Payments shall be paid in cash within 60 days
of the closing of the registered offering.

             (b) Upon termination for any reason not described in Section 2.4(a)
(including without limitation, termination for cause or voluntary termination by
the Management Holder), the Corporation shall purchase, and the Management
Holder shall sell, all of the Management

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Shares owned by such Management Holder for a purchase price equal to 90% of Book
Value Per Share multiplied by the number of Management Shares owned by such
Management Holder. Subject to the limitations set forth in Section 2.4(c), 50%
of the purchase price for Management Shares purchased pursuant to this
subsection (b) shall be paid in cash (or, if greater, the amount required to pay
both the outstanding balance of any financing pursuant to Section 1.3 and the
amount of any federal income tax owed by the Management Holder for the year in
which the sale occurs in respect of the portion of the gain recognized by such
Management Holder with respect to the sale during such year) at the closing of
the purchase and sale (the "Initial Section 2.4(b) Payment") and the balance of
the purchase price shall be paid in approximately equal quarterly installments
over the two-year period following the sale, the last payment to be paid on the
second anniversary of the sale (the "Additional Section 2.4(b) Payment").
Interest on any unpaid portion of the Additional Section 2.4(b) Payment shall be
paid quarterly from the closing at Prime Rate. The payment of Initial Section
2.4(b) Payments and the Additional Section 2.4(b) Payments is subject to the
limitations set forth in Section 2.4(c).

             (c) The amount of the purchase price payable by the Corporation to
any Management Holder pursuant to Section 2.4(a) and (b) shall be reduced by any
amount paid by the Corporation or any affiliate of the Corporation to NCNB
National Bank (or any successor bank) to discharge the principal portion of any
indebtedness incurred by such Management Shareholder to purchase the Management
Shares. If, as a result of restrictions in its loan agreement with NationsBank
of Georgia, N.A., ProSource Services Corporation ("PSC"), formerly known as BDKA
Corporation, is unable to pay sufficient dividends to the Corporation to enable
the Corporation to pay the amount of the purchase price required to be paid by
it in cash either at the closing of the sale or at any time thereafter in
accordance with the terms set forth in Sections 2.4(a) and 2.4(b) and to
cash-out Options pursuant to Section 6.4 of the Option Plans, the Corporation
shall be entitled to pay any unpaid portion of the payments required to be made
under Sections 2.4(a) and 2.4(b) and under Section 6.4 of the Option Plans,
together with interest thereon at the Prime Rate, at such time as it has
received from PSC sufficient dividends to enable it to do so. The Corporation
shall use available funds received from PSC first to pay all amounts due on
account of any Initial Section 2.4(a) Payments and Initial Section 2.4(b)
Payments, then to pay all amounts due on account of Additional Section 2.4(a)
Payments and Additional Section 2.4(b) Payments, and then to pay all amounts due
on account of the cash-out of Options pursuant to Section 6.4 of the Option
Plans.

         2.5 SALE UPON TERMINATION OF EMPLOYMENT: CORPORATION IS A PUBLIC
COMPANY.

             (a) If a Management Holder ceases to be employed in a full-time
capacity by the Corporation or a Subsidiary when the Corporation is a Public
Company, Onex or its designee shall have the option to purchase all or any
portion of the Management Shares owned by such Management Holder. The purchase
price for such Management Shares shall be equal to the number of such Shares to
be purchased multiplied by Market Price Per Share and shall be paid in cash at
the closing of the sale.


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             (b) If Onex or its designee does not exercise such option within 30
days from the date of the termination of the Management Holder's employment, the
Management Holder shall be entitled to sell his Management Shares through the
facilities of any securities exchange on which the Shares may then be listed in
a manner that complies with applicable securities laws and regulations; provided
that the Management Holder shall not sell during the year following the
termination of the Management Holder's employment in the aggregate more than 50%
of the Management Shares owned by such Management Holder and his Family Group
Members unless such termination arises from (i) his death or Disability, in
which case the foregoing restriction shall not apply or (ii) his retirement, in
which case the Management Holder may sell during the year following the
termination of the Management Holder's employment in the aggregate up to 66-2/3%
of the Management Shares owned by such Management Holder and his Family Group
Members.

             (c) The parties acknowledge that, pursuant to paragraph 4 of
Article Fourth, Section 2B of the Company's Restated Certificate of
Incorporation, Class B Common Stock automatically converts in accordance with
such paragraph of the Restated Certificate of Incorporation into Class A Common
Stock upon termination of the Management Holder's employment, unless transferred
to Onex (or an affiliate thereof) or another Management Holder.

         2.6 SALE UPON DEFAULT ON INDEBTEDNESS. If a Management Holder defaults
on any indebtedness referred to in Section 1.3, the Corporation shall have the
option, exercisable upon notice to the Management Holder at any time following a
default, to purchase all or any portion of the Management Shares with respect to
which such debt was incurred at a purchase price equal to (i) 85% of Book Value
Per Share, if the Corporation is not a Public Company at the time of the closing
of the purchase or (ii) 85% of Market Price Per Share, if the Corporation is a
Public Company at the time of the closing of the purchase.

         2.7 CLOSING OF SALE. The closing of any purchase and sale of Management
Shares pursuant to the exercise of a right under this Section 2 (other than
transfers or sales made pursuant to Sections 2.1 or 2.2 or through the
facilities of any securities exchange pursuant to Sections 2.3 and 5) shall be
held at the principal offices of the Corporation on a date designated by the
purchaser but in any event not later than the last day upon which a purchase is
permitted or required to be made. At the closing, the Management Holder selling
Shares shall deliver to the purchaser the stock certificates and other
instruments representing such Shares, together with stock powers and other
instruments transferring such Shares, duly endorsed for transfer and free and
clear of all claims, liens, encumbrances and security interests, and the
purchaser shall deliver to the Management Holder the consideration payable upon
closing.

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3.       OPTIONS TO PURCHASE SHARES

         3.1 Shares received by a Management Holder upon the exercise or
conversion of any options, warrants, rights to purchase shares or securities
convertible into Shares, including the Options, shall be subject to the terms
and conditions of this Agreement and may not be transferred except as permitted
by this Agreement.

4.       SALE OF SHARES BY ONEX AND THE CORPORATION

         4.1 TAG ALONG. (a) If at any time any member of the Onex Group proposes
to sell any Shares except for (i) sales to another member of the Onex Group that
becomes bound by the terms of this Agreement (an "Onex Group Member"), (ii)
sales to a Management Holder or other management employee or directors of the
Corporation or a Subsidiary, (iii) sales of the 500 Shares purchased by Onex on
June 30, 1992 for later disposition to persons providing services to the
Corporation or any of the Corporation's subsidiaries (the "500 Shares"), (iv)
sales effected on a national securities exchange in the regular way or in the
over-the-counter market, or (v) pursuant to an offering of securities registered
under the 1933 Act (a "Tag Along Disposition"), each of the Management Holders
shall have the right to sell to the proposed purchaser a number of his
Management Shares equal to the total number of his Management Shares multiplied
by a ratio, the numerator of which is the number of Shares to be sold by the
Onex Group Member to the proposed purchaser and the denominator of which is the
total number of Shares then owned by the Onex Group. Such ratio is referred to
herein as the "Share Ratio." A sale of Management Shares pursuant to this
Section shall be made at the same price, upon the same terms, and at the same
time as the sale by the Onex Group Member of its Shares.

         (b) The Onex Group Member shall give notice (the "Tag Along Notice") to
each Management Holder of the proposed Tag Along Disposition at least 20 days
prior to the same. The Tag Along Notice shall be in writing and shall describe
the terms of the Tag Along Disposition in reasonable detail, the identity of the
proposed purchaser, the proposed date of sale, the purchase price per Share, and
the Share Ratio and shall state that (i) the Management Holder has the option to
sell to the proposed purchaser a number of Management Shares equal to the total
number of Management Shares then owned by such Holder multiplied by the Share
Ratio, (ii) the sale, if made, shall be made at the same price per share, upon
the same terms, and at the same time as the sale by the Onex Group Member of its
Shares to the proposed purchaser, and (iii) the sale by Management Holders will
be conditioned upon a sale of Shares by the Onex Group Member pursuant to this
Section.

         (c) A Management Holder may exercise its sale option pursuant to
Section 4.1 by delivering to the Onex Group Member, within ten days after such
Management Holder receives the Tag Along Notice, written notice of his offer to
sell Management Shares pursuant to this Section and indicating the number of
Management Shares offered for sale. If a Management Holder gives notice of his
election to sell, he shall be obligated to do so, but the sale and his

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obligation to sell shall be conditioned upon the closing of the Tag Along
Disposition. If the purchaser specifies a limited number of Shares that it is
willing to purchase in the aggregate, each Management Holder and the Onex Group
Member shall have the right to sell its or his proportion of the number of
Shares that the purchaser is purchasing, i.e., the proportion that the number of
Shares owned by such Person bears to the aggregate number of Shares owned by the
shareholders who are selling Shares. If any Person does not elect to sell the
full number of Shares that he or it is entitled to sell, the balance shall be
available, in accordance with such procedures as the Onex Group Member may
designate, to the shareholder that has elected to sell the maximum number of
Shares initially available to it or him for such purpose. For purposes of this
Section 4.1, the number of Shares owned by any Onex Group Member shall not be
deemed to include any portion of the 500 Shares then owned by any Onex Group
Member.

         (d) If a transferee of Onex Shares pursuant to this Section 4.1
acquires such Shares free of this Agreement, then such transferee shall also
take the Management Shares being sold by a Management Holder free of this
Agreement. If, however, any Onex Group Member is required to transfer any Onex
Shares subject to this Agreement, then the Management Holder shall also transfer
his Management Shares subject to this Agreement.

         4.2 DRAG ALONG. Notwithstanding anything herein to the contrary, if any
Onex Group Member proposes to sell any Shares to any Person, except for (i)
sales of the 500 Shares, (ii) sales effected on a national securities exchange
in the regular way or in the over-the-counter market, and (iii) sales to any
other Onex Group Member (a "Drag Along Disposition"), it may, upon giving notice
to each Management Holder at least 20 days prior to the Drag Along Disposition
(the "Drag Along Notice") require the Management Holders to sell a number of
Management Shares equal to the total number of Management Shares then owned by
such Holder multiplied by the Share Ratio. The Drag Along Notice shall be in
writing and shall contain the same information as is required to be set forth in
the Tag Along Notice. A sale of Management Shares pursuant to this Section shall
be made at the same price, upon the same terms, and at the same time as the sale
by the Onex Group Member of its Shares pursuant to this Section. Any transferee
of Shares owned by any Onex Group Member or of the Management Holders pursuant
to this Section 4.2 shall acquire such Shares free of this Agreement, unless the
agreement between the Onex Group Member and such transferee provides otherwise.

         4.3 REPRESENTATIONS AND WARRANTIES ON A DISPOSITION. In connection with
any transfer described in this Section 4 in which Management Shares are to be
sold by a Management Holder, Onex and the selling Onex Group Member may require
the Management Holder to enter into agreements with the purchaser representing
and warranting that, except as specifically disclosed to the purchaser in
writing, such Management Holder at the time of the closing of such transfer,
does not have actual knowledge that any representation or warranty made by the
Corporation or any other shareholder in connection with the disposition was
untrue in any material respect when made or is untrue in any material respect as
of the closing; the liability of the selling Management Holder under such
representation and warranty shall be limited to the amount which he receives
from the sale of his Management Shares in connection with such

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transfer and shall be pro rata in accordance with the number of Shares sold by
the Management Holder in relation to the Shares being sold by all holders.

         4.4 PRE-EMPTIVE RIGHTS. If, prior to the time when the Corporation
becomes a Public Company, the Corporation intends to sell shares of its capital
stock or options, warrants, rights to purchase, or securities convertible into,
or exchangeable for, shares of its capital stock to any member of the Onex Group
for cash, the Corporation shall give notice thereof (the "Sale Notice") to each
of the Management Holders. The Sale Notice shall be in writing, shall describe
the securities to be offered, the price of such securities, and other terms of
the offer in reasonable detail. Each Management Holder shall have the right,
subject to applicable law and exercisable by notice to the Corporation within 45
days after his receipt of the Sale Notice, to purchase his Pro Rata Share (as
defined in this Section 4.4) of the securities offered for the same price per
unit and on the same terms as the securities are offered to Onex and as are
described in the Sale Notice. As used in this Section 4.4, the term "Pro Rata
Share" shall mean the product of (x) the total number of securities referred to
in the Sale Notice as proposed to be sold to members of the Onex Group and (y) a
fraction, the numerator of which is the number of Management Shares of all
classes held by the Management Holder on the date the Sale Notice is given and
the denominator of which is the sum of the number of Shares of all classes of
the Corporation's stock of the same class or classes as Management Shares
outstanding on such date (including the Management Shares). Any securities
acquired by a Management Holder pursuant to this Section 4.4 shall be subject to
the terms of this Agreement. The provisions of this Section 4.4 shall not apply
to the issuance of securities, with or without consideration, to officers and
employees of the Corporation and its subsidiaries or plans for the benefit of
such employees, by the Corporation from time to time and shall not require the
Corporation to offer securities under circumstances that could require
registration under the 1933 Act.

5.       PIGGY-BACK REGISTRATION RIGHTS

         5.1 If the Corporation proposes to effect a registration under the 1933
Act involving an offering of securities of the same class as the Management
Shares, it shall give written notice of its intention to do so (the "Public
Offering Notice") to each Management Holder.

         5.2 Upon the written request of a Management Holder (the "Management
Holder's Request") delivered to the Corporation within ten days after such
Holder's receipt of the Public Offering Notice, the Corporation shall use its
best efforts to cause the registration under the 1933 Act of the number of
Management Shares stated in the Management Holder's Request for disposition in
accordance with the intended method of disposition as stated in the Management
Holder's Request; provided, that:

             (a) if, the number of Management Shares stated in the Management
Holder's request represents a greater proportion of the total number of
Management Shares owned by such Management Holder than the number of Shares
proposed to be sold and distributed by the Onex Group pursuant to the public
offering bears to the total number of Shares owned by the Onex

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Group, the Corporation shall not be obligated to effect the registration of such
excess number of Management Shares;

             (b) if, at any time after giving such written notice of its
intention to register any of its securities and prior to the effective date of
the registration statement filed in connection with such registration, the
Corporation determines for any reason not to effect such registration or to
delay such registration, it may, at its election, give written notice of such
determination to each Management Holder and thereupon the Corporation (i) in the
case of a determination not to effect registration, shall be relieved of its
obligation to register any Management Shares in connection with such
registration or (ii) in the case of a determination to delay registration, shall
be entitled to delay the registration of the Management Shares for the same
period as the delay in the registration of its securities;

             (c) if (i) the registration involves an underwritten offering of
the securities being registered (in which case the Management Holder shall be
required to make its offering through the underwriters selected by the
Corporation and to sign the same underwriting agreement), whether or not for
sale for the account of the Corporation and (ii) the managing underwriter of
such underwritten offering advises the Corporation that the number of Shares
that members of the Onex Group and the Management Holders wish to sell exceeds
the number thereof that, in the sole discretion of the underwriter, is the
maximum number thereof that may be included in the offering without adversely
affecting the offering, then the Corporation shall not be required to include in
the offering the excess number of Shares requested to be sold by the members of
the Onex Group and each Management Holder above such maximum number (the Shares
so included to be apportioned pro rata among the members of the Onex Group and
each Management Holder so that each member of the Onex Group and each Management
Holder shall be entitled to have included in the offering a number of Shares
that is proportionate to his or its respective ownership of Shares; if any
member of the Onex Group or any Management Holder is entitled to have included
in the offering more Shares than he wishes to sell, each remaining Management
Holder and members of the Onex Group shall be entitled to make up the difference
pro rata from its or his respective ownership of Shares); and

             (d) the Corporation shall not be obligated to effect any
registration of Management Holder's Shares under this Section 5 incidental to
the registration of any of its securities in connection with mergers,
acquisitions, exchange offers, dividend reinvestment plans or stock options or
other employee benefit plans or incidental to the registration of any nonequity
securities not convertible into equity securities.

         5.3 Except as otherwise prohibited by applicable law or regulations,
the Corporation shall pay all expenses incurred in connection with the
registration of Management Holder's Shares pursuant to this Section 5, including
all registration and filing fees, printing expenses, blue sky fees and expenses
and accountant expenses to the extent permitted by law, but not including
commissions and expenses payable to underwriters in respect of Management Shares
and the fees of any counsel or other advisers retained by Management Holders.

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6.       LEGEND

         All certificates representing Management Shares held by any Management
Holder (and held by a transferee of Management Shares, except (i) as set forth
in Section 4, (ii) with respect to Shares transferred to Onex, and (iii) with
respect to a transferee pursuant to Section 2.3 or 2.5 or pursuant to a
registration statement in accordance with Section 5) shall bear the following
legend:

                           "The shares represented by this certificate have not
                  been registered under the Securities Act of 1933 and the
                  transfer and voting of such shares is subject to conditions
                  specified in the Amended and Restated Management Shareholders
                  Agreement, dated November 15, 1996, between the Corporation,
                  Onex DHC LLC and the holder hereof, among others, and no
                  transfer of such shares shall be valid or effective until such
                  conditions have been fulfilled with respect to such transfer.
                  A copy of such Agreement will be furnished by the Corporation
                  to the holder of this Certificate upon written request and
                  without charge."

7.       INTENTIONALLY OMITTED

8.       CERTAIN PROHIBITED TRANSACTIONS AND REQUIRED ACTIONS

         The Corporation shall not merge, consolidate, or amalgamate with
another corporation, or sell all or substantially all of its assets to another
Person, if pursuant thereto any member of the Onex Group is to receive equity
securities as full or partial consideration for its Shares unless all Management
Holders have the right to receive the same securities in proportion to their
respective holdings of Shares.

9.       MANAGEMENT REPRESENTATIVES

         Each of the Management Holders hereby irrevocably constitutes and
appoints the Management Representatives (as defined in this Section 9) as his
representatives to take all actions on his behalf in connection with this
Agreement, in their sole and absolute discretion, including but not limited to,
executing any consents or waivers in connection with, or any amendments to, this
Agreement but not any decision to sell his Management Shares or any decision to
buy any securities of the Corporation pursuant to Section 4.4. The term
"Management Representative" shall mean, any two of the Chairman of the Board of
Directors of ProSource Services Corporation, a subsidiary of the Corporation
("PSC"), the President of PSC, and the Vice Chairman of the Board of Directors
of PSC.


                                       11
<PAGE>   12
10.      INTENTIONALLY OMITTED


11.      CERTAIN DEFINITIONS

         11.1 The term "BOOK VALUE PER SHARE" as of any date shall mean the
quotient obtained by dividing (X) consolidated stockholders' equity of the
Corporation and its subsidiaries as at the end of the fiscal quarter immediately
preceding the date of the event that required the purchase and sale pursuant to
Section 2.4 determined in accordance with generally accepted accounting
principles in effect in the United States on the date of this Agreement by (Y)
the number of shares of common stock of the Corporation outstanding on such
date; in making calculations for purposes of clauses (X) and (Y), (i) the number
of Shares into which the Subordinated Note are convertible shall be excluded and
(ii) it shall be assumed that all Options outstanding on the date as of which
the calculation is being made had been exercised to the extent that the exercise
price does not exceed Book Value Per Share (determined without regard to this
clause) and any purchase price for Shares payable upon such exercise had been
paid. The determination of Book Value Per Share shall be based upon the audited
(in the case of the end of the last quarter of a fiscal year) or unaudited (in
the case of the end of any of the first three quarters of a fiscal year) balance
sheet of the Corporation as at the end of the fiscal quarter in question.
Notwithstanding the foregoing, Book Value Per Share shall be equitably adjusted
by the Board of Directors of the Corporation if a stock dividend,
recapitalization or other material event occurs outside of the ordinary course
of business after the end of such fiscal quarter and before the closing of the
sale in respect of which the determination is being made.

         11.2 The term "1933 ACT" shall mean the Securities Act of 1933, as in
force on the date in question, or any similar federal statute then in force.

         11.3 The term "DISABILITY" shall mean the inability of a Management
Holder to perform his duties of employment for the Corporation or any of its
Subsidiaries or affiliates, including PSC, for an aggregate of 180 days or more
in any 365-day period, because of physical or mental disability.

         11.4 The term "MANAGEMENT SHARES" shall mean the Shares owned at any
time by any Management Holder.

         11.5 The term "MARKET PRICE PER SHARE" shall mean the average closing
price per Share on the principal securities exchange on which the Shares are
listed (or, if the Shares are not then listed on a securities exchange, the mean
between the closing bid and asked prices in the over-the-counter market) for the
ten trading days thereon immediately preceding the Market Sale Notice (in the
case of a sale pursuant to Section 2.3) or the closing of the sale (in the case
of a sale pursuant to Section 2.5).


                                       12
<PAGE>   13
         11.6 The term "ONEX GROUP" shall mean Onex Corporation, an Ontario
Corporation, and any Person controlled by, controlling or under common control
with, or a shareholder of, Onex Corporation. A Person ("Parent") controls
another Person if Persons controlled by it (within the meaning of this sentence)
own or have the right (by contract or otherwise) to vote or direct the vote of
securities or other interests having the power to elect a majority of that
Person's board of directors or similar governing body (other than securities or
interests having that power only upon the happening of a contingency that has
not occurred) or to otherwise direct the management of such Person.

         11.7 The term "ONEX SHARES" shall mean the Shares owned at any time by
the Onex Group.

         11.8 The term "OPTION PLANS" shall mean the Corporation's Amended and
Restated Management Option Plan (1995) and the Corporation's 1996 Stock Option
Plan, as each may be amended, restated or modified from time to time, except
that the term "Option Plan" as used in Section 2.4(c) shall exclude the
Corporation's 1996 Stock Option Plan.

         11.9 The term "OPTION" shall mean Option as defined in the Option
Plans.

         11.10 The term "PERSON" shall mean an individual, a partnership, a
joint venture, a corporation, a trust, an unincorporated organization, and a
government or any department or agency thereof.

         11.11 The term "PRIME RATE" shall mean the prime rate announced from
time to time by NationsBank of Georgia, N.A.

         11.12 The Corporation is a "PUBLIC COMPANY" if shares of its capital
stock are registered under Section 12 or if the Corporation is subject to
reporting requirements under Section 15(d) of the Securities Exchange Act of
1934 or any similar federal statute in force.

         11.13 The term "SUBORDINATED NOTE" shall mean the convertible
subordinated note, dated March 31, 1995, evidencing the Corporation's
indebtedness to Onex Ohio Holdings, Inc. in the principal amount of $3,500,000.

12.      TERMINATION

         This Agreement shall terminate when the Onex Group ceases to hold in
the aggregate 20% of the outstanding voting capital stock of the Corporation or
when another Person (as defined in Rule 144 of the 1933 Act) holds in the
aggregate a greater percentage of the outstanding voting capital stock of the
Corporation than the Onex Group (excluding the Corporation) owns, whichever is
earlier. This Agreement shall terminate as to any Person when that Person no
longer owns any Management Shares or Onex Shares, as the case may be.


                                       13
<PAGE>   14
13.      EFFECTIVE DATE

         This Agreement shall become effective upon the consummation of the
Offering.

14.      MISCELLANEOUS

         14.1 NOTICES

         All notices, consents and other communications under this Agreement
shall be in writing and shall be deemed to have been duly given when (a)
delivered by hand, (b) sent by telex or telecopier (with receipt confirmed),
provided that a copy is mailed by registered mail, return receipt requested, or
(c) when received by the addressee, if sent by Express Mail, Federal Express or
other express delivery service (receipt requested), in each case to the
appropriate addresses, telex numbers and telecopier numbers set forth below (or
to such other addresses, telex numbers and telecopier numbers as a party may
designate as to itself by notice to the other parties):

         (a) if to the Corporation:

                           ProSource, Inc.
                           550 Biltmore Way, 10th Floor
                           Coral Gables, Florida  33134
                           Attention:  President
                           Telecopy:  (305) 529-2573

             with a copy to:

                           Kaye, Scholer, Fierman, Hays & Handler, LLP
                           425 Park Avenue
                           New York, New York  10022
                           Attention:  Joel I. Greenberg, Esq.
                           Telecopy:  (212) 836-7149

         (b) if to Onex or any member of the Onex Group:

                           Onex Corporation
                           161 Bay Street, 49th Floor
                           P.O. Box 700
                           Toronto, Ontario
                           M5J 2S1
                           Canada
                Attention: President and Chief Executive Officer
                            Telephone: (416) 362-7711
                           Telecopy:  (416) 362-5765

                                       14
<PAGE>   15
         (c) if to any Management Holder, to him at his address as it appears on
Schedule I attached hereto or as shown on the records of the Corporation.


         14.2 ASSIGNMENT

         No party may assign any rights or delegate any of its duties under this
Agreement, but this Agreement shall be binding upon and inure to the benefit of
the successors to the business and assets of the Corporation, Onex and the
Management Holders.

         14.3 NO WAIVER

         The failure of a party to insist upon strict adherence to any term of
this Agreement on any occasion shall not be considered a waiver or deprive that
party of the right thereafter to insist upon strict adherence to that term or
any other term of this Agreement. Any waiver must be in writing.

         14.4 EXCLUSIVE AGREEMENT AND AMENDMENT

         This Agreement supersedes all prior agreements among the parties with
respect to its subject matter, is intended as a complete and exclusive statement
of the terms of the Agreement among the parties with respect thereto and cannot
be changed or terminated orally. This Agreement may only be amended or altered
by the mutual agreement of the parties hereto, such amendments or alterations to
become effective when reduced to writing and signed by Onex, the Corporation and
Management Representatives or by Onex, the Corporation and the holders of at
least 75% of the Management Shares.

         14.5 GOVERNING LAW

         This Agreement and all amendments hereof and waivers and consents
hereunder shall be governed by the internal law of the State of Delaware without
regard to the conflicts of law principles thereof.

         14.6 CAPTIONS

         The captions in this Agreement are for convenience of reference only
and shall not be given any effect in the interpretation of this Agreement.

         14.7 JURISDICTION

         Any action or proceeding seeking to enforce any provision of, or based
on any right arising out of, this Agreement may be brought against any of the
parties in the courts of the State

                                       15
<PAGE>   16
of Delaware, or, if it has or can acquire jurisdiction, in the United States
District Court for Delaware, and each of the parties hereby consents to the
exclusive jurisdiction of such courts (and of the appropriate appellate courts)
in any such action or proceeding, and waives any objection to venue laid
therein. Process in any such action or proceeding may be served anywhere in the
world, whether within or without the State of Delaware.

         14.8 COUNTERPARTS

         This Agreement may be executed in counterparts, each of which shall be
considered an original, but all of which together shall constitute one and the
same instrument.

         14.9 SEVERABILITY

         The provisions of this Agreement are intended to be and shall be deemed
severable. The invalidity or unenforceability of any particular provision of
this Agreement shall not affect the other provisions hereof, and this Agreement
shall be construed in all respects as if such invalid or unenforceable provision
were omitted.


                                    ONEX DHC LLC


                                    By:  /s/ Donald F. West
                                         -----------------------------
                                         Name:  Donald F. West
                                         Title: Representative



                                    PROSOURCE, INC.


                                    By:  /s/ David R. Parker
                                         -----------------------------
                                         Name:  David R. Parker
                                         Title: Chairman of the Board


                                       16
<PAGE>   17
                                    MANAGEMENT REPRESENTATIVES
                                    On behalf of the Management Holders listed
                                    on Schedule I hereto pursuant to Section 9
                                    of the Original Agreement


                                    By:  /s/ David R. Parker
                                         -----------------------------
                                         Name:  David R. Parker
                                         Title: Chairman of the Board


                                     By: /s/ Thomas C. Highland
                                         -----------------------------
                                         Name:  Thomas C. Highland
                                         Title: President & CEO


                                       17
<PAGE>   18
                                                                      Schedule I


                           List of Management Holders


<TABLE>
<CAPTION>
                                                                   Number of Shares
                                                                  of Class B Common
                                                                   Stock Owned Upon
                                                                     Consummation
Name and Address                                                   of the Offering
----------------                                                   ---------------
<S>                                                                     <C>
Daniel J. Adzia                                                         45,000
1975 Pleasant Hill Lane
Lisle, Illinois  60532

Yolanda D. Alvarez                                                      5,000
8175 S.W. 170th Street
Miami, Florida  33157

Maurice L. Ambler                                                       7,500
8245 SW 184 Lane
Miami, FL  33157

Brad Anderson                                                           3,000
#5 Graystone Court
Bloomington, Illinois  61704

Dennis Andruskiewicz                                                    13,000
9370 SW 93 Place
Miami, FL  33176

Suzanne Benn                                                            6,000
9720 S.W. 119 Street
Miami, Florida  33176

Robert A. Boehm                                                         3,600
623 Crossing Creek South
Gahanna, Ohio  43230

Mark Brigham                                                            4,500
1 Fawnwood Lane
P.O. Box 433
Fort Montgomery, New York  10922

Lynn T. Cambest                                                         3,000
4000 Towerside Terrace
Apt. 1704
Miami, Florida  33138
</TABLE>


                                       I-1
<PAGE>   19
<TABLE>
<CAPTION>
                                                                   Number of Shares
                                                                  of Class B Common
                                                                   Stock Owned Upon
                                                                     Consummation
Name and Address                                                   of the Offering
----------------                                                   ---------------
<S>                                                                     <C>
Joyce Cameron                                                           4,300
466 Curie Drive
San Jose, CA  95123

Mark A. Cartwright                                                      4,500
304 Mallard Road
Weston, FL  33327

Stephen Chambers                                                        7,000
8251 S.W. 171 Terrace
Miami, Florida  33157

Joshua M. Chaney                                                        7,300
560 Ripplewater Drive
Marietta, GA  30064

Richard L. Christie                                                     4,500
4030 La Playa Blvd.
Coconut Grove, FL  33133

George Clos                                                             2,800
6297 Old Virginia Lane
Parma Heights, OH  44130

James M. Collins                                                        9,000
285 7NE 59th Terrace
Gladstone, MO  64119

Paul Conway                                                             9,700
6540 SW 144 Street
Miami, FL  33158

Dan Craig                                                               2,400
113 Zinfandel Circle
Scotts Valley, CA  95066

Norman L. Dick                                                          4,500
5 S 735 Park Meadow
Naperville, Illinois  60540

James Dimos                                                             1,000
372 N. Walnut Lane
Schaumburg, IL  60194
</TABLE>


                                       I-2
<PAGE>   20
<TABLE>
<CAPTION>
                                                                   Number of Shares
                                                                  of Class B Common
                                                                   Stock Owned Upon
                                                                     Consummation
Name and Address                                                   of the Offering
----------------                                                   ---------------
<S>                                                                     <C>
Robert Donaldson                                                        20,400
1440 South Bayshore Drive, #301
Miami, FL  33131

Steve Edwards                                                           2,000
6127 Sand Pines Estates Blvd.
Orlando, Florida  32819

Mark Eisenberg                                                          4,500
50 Cedar Ridge Lane
Dix Hills, NY  11746

William F. Evans                                                        45,000
3824 El Prado Blvd.
Coconut Grove, FL  33133

John E. Foley                                                           30,000
6724 S.W. 139 Street
Miami, Florida  33158

John P. Gainor                                                          15,000
10045 S.W. 124 Street
Miami, FL  33176

Timothy E. Hannon                                                       5,800
5311 Sand Lily Drive
Naperville, Illinois  60564

Thomas C. Highland                                                      75,000
7120 Lago Drive West
Coral Gables, FL  33143

Roger Hubbard                                                            900
26651 SW 174 Place
Homestead, FL  33031

Marcelino Iturrey                                                       4,500
9250 S.W. 70th Avenue
Miami, Florida  33156

Walter Jankowski                                                        1,500
24322 Fairway Lane
Coto De Caza, CA  92679
</TABLE>


                                       I-3
<PAGE>   21
<TABLE>
<CAPTION>
                                                                   Number of Shares
                                                                  of Class B Common
                                                                   Stock Owned Upon
                                                                     Consummation
Name and Address                                                   of the Offering
----------------                                                   ---------------
<S>                                                                     <C>
Edward M. Johnson                                                       10,000
1801 W. Terra Mar Drive
Pompano Beach, FL  33062

Larry R. Johnson                                                        1,000
203 Landings Boulevard
Weston, FL  33327

Joseph C. Johnston                                                      18,100
1501 N. Madison
Raymore, MO  64083

William R. Jusko                                                        4,300
3803 Marine Court
Arlington, TX  76016

Paul Lawrenz                                                            3,000
339 Hiawatha
Wood Dale, Illinois  60191

Shirley A. Malone                                                       3,000
2601 Chateau Drive
Norman, Oklahoma  73069

William G. Malone                                                       3,000
2601 Chateau Drive
Norman, Oklahoma  73069

Anthony Marino                                                          6,900
2966 Grandview Drive
Fairlawn, OH  44333

Merv McBride                                                            1,800
12298 SE Imperial Crest
Clackamas, OR  97015

Richard W. McCollum                                                     2,900
35991 Wyndemere Way
Avon, Ohio  44011

Diana M. McHugh                                                         9,000
9145 S.W. 72 Avenue, Apt. V-1
Miami, Florida  33156
</TABLE>


                                       I-4
<PAGE>   22
<TABLE>
<CAPTION>
                                                                   Number of Shares
                                                                  of Class B Common
                                                                   Stock Owned Upon
                                                                     Consummation
Name and Address                                                   of the Offering
----------------                                                   ---------------
<S>                                                                     <C>
Thomas McKinnon                                                         5,000
865 N. LaSalle Boulevard
Chicago, Illinois  60610

James Mosier                                                            2,800
1875 Water Ridge Court
Ft. Lauderdale, FL  33326

Michael A. Moskowits                                                    1,500
16112 SW 74 Place
Miami, FL  33157

Craig Neeb                                                              4,100
12224 SW 95 Street
Miami, FL  33186

Stan Nochowitz                                                          10,000
3006 North Dryden Place
Arlington Heights, Illinois  60004

James P. Nolan                                                          3,200
15548 Plum Tree Drive
Orland Park, Illinois  60462

Michael J. Nolan                                                         500
67997 Dequindre Road
Oakland, MI  48363

Steven S. Obremski                                                      3,700
One Kelly Street
Auburn, MA  01501

Cynthia Ormond                                                          3,000
624 Fluvia Avenue
Coral Gables, FL  33134

Calvin Parker                                                           3,600
22 S. Tallowberry Drive
The Woodlands, Texas  77381

David R. Parker                                                        143,300
930 Castile Avenue
Coral Gables, FL  33134
</TABLE>


                                       I-5
<PAGE>   23
<TABLE>
<CAPTION>
                                                                   Number of Shares
                                                                  of Class B Common
                                                                   Stock Owned Upon
                                                                     Consummation
Name and Address                                                   of the Offering
----------------                                                   ---------------
<S>                                                                     <C>
Paul A. Garcia de Quevedo                                               15,000
5810 S.W. 91st Street
Miami, FL  33173

Randall L. Ray                                                          1,500
219 17th Street
Wilmette, IL  60091

Kenyard W. Rewerts                                                      2,500
136 Brandywine Avenue
Elk Grove Village, Illinois  60007

Scott Richardson                                                        3,000
231 Terrane Ridge
Peachtree City, Georgia  30269

Robert Selby                                                            10,000
28956 Fall River
Westlake, OH  44145

James N. Slattery                                                       3,000
221 Tiffany Lane
Roselle, Illinois  60172

Shane R. Stapleton                                                      4,600
863 Verona Lake Drive
Ft. Lauderdale, FL  33326

James Stencel                                                           5,500
10115 S.W. 13th Street #201
Pembroke Pines, FL  33025

Wayne H. Stephens                                                       3,000
19208 Antenor Street
Mandeville, LA  70471

Charles M. Temple                                                       9,000
7410 Chadwick
Prairie Village, KS  66208

Jay Trottier                                                             500
5300 Great Oak Drive
Lakeland, FL  33809
</TABLE>


                                       I-6
<PAGE>   24
<TABLE>
<CAPTION>
                                                                   Number of Shares
                                                                  of Class B Common
                                                                   Stock Owned Upon
                                                                     Consummation
Name and Address                                                   of the Offering
----------------                                                   ---------------
<S>                                                                     <C>
Robert H. Winstead                                                      8,700
1541 Brickell Avenue, #3504
Miami, FL  33129

Thomas J. Wondolowski                                                   7,200
566 McKendimen Road
Medord, NJ  08055
</TABLE>


                                      I-7