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                                                                   EXHIBIT 10.53

                  SUPPLEMENTAL EXECUTIVE COMPENSATION AGREEMENT

                  THIS SUPPLEMENTAL EXECUTIVE COMPENSATION AGREEMENT
("Agreement") is entered into effective as of the 1st day October, 1999, by and
between HIGH SPEED ACCESS CORP., a Delaware corporation (the "Company") and
DANIEL J. O'BRIEN, an individual resident of Colorado ("Executive").

         RECITALS:

         Executive desires to be employed by the Company and the Company desires
to employ Executive. As a condition of such employment, Executive and the
Company desire to execute this Agreement.

         NOW, THEREFORE, in consideration of the mutual promises and covenants
contained herein, and for other good and valuable consideration, the receipt and
sufficiency of which are hereby acknowledged, it is agreed by and between the
Company and Executive as follows:

         1. Definitions. The following words and phrases, when used herein,
shall have the following meanings:

                  A. "Board" means the Company's Board of Directors.

                  B. "Cause" means that Executive's employment with the Company
shall have terminated upon the occurrence of any of the following events:

                           (a) The discharge of Executive for willful
         misconduct, dishonesty or fraud on Executive's part in connection with
         the performance of any of his duties under the Employment Agreement; or

                           (b) The discharge of Executive for a material breach
         by Executive of any of the terms of Sections 8 or 10 of the Employment
         Agreement; or

                           (c) The discharge of Executive upon a determination
         by the Board, acting in good faith and with reasonable justification,
         that Executive's performance in his position as Chief Operating Officer
         of the Company has been unsatisfactory, after first having given
         written notice to Executive that his performance has been
         unsatisfactory (which notice shall set forth in reasonable detail the
         nature of the unsatisfactory performance), and Executive having failed
         to cure such unsatisfactory performance within thirty (30) days
         thereafter to the reasonable satisfaction of the Board; or

                           (d) The discharge of Executive for conviction of a
         felony or a crime involving moral turpitude.

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                  C. "Common Stock' means the $.01 par value per share common
stock of the Company.

                  D. "Company" means High Speed Access Corp., a Delaware
corporation, and its successors.

                  E. "Disability" or "Disabled" means a physical or mental
condition which in the Company's judgment, based on medical reports and other
evidence satisfactory to the Company, prevents Executive from satisfactorily
performing his usual duties for the Company as Chief Operating Officer for a
continuous period of six (6) months.

                  F. "Employment Agreement" means the Employment Agreement
between the Company and Executive dated October 1, 1999.

                  G. "Good Reason" means that Executive shall have terminated
his employment with the Company upon the determination by Executive that any or
more of the following events has occurred:

                           (a) a material change in Executive's duties as Chief
         Operating Officer or an adverse change in Executive's title; or

                           (b) any reduction by the Company of Executive's
         Salary or a material reduction in Executive's benefits.

                  I. "Option" means the option to purchase the Option Shares
pursuant to the Option Agreement.

                  J. "Option Agreement" means the Stock Option Agreement
effective as of October 1, 1999 between the Company and Executive.

                  K. "Option Shares" means the 750,000 shares of Common Stock
subject to the Option.

                  L. "Salary" shall have the meaning given it in the Employment
Agreement.

         2. Payment Election; Cancellation of Option.

                  A. If, as of September 30, 2002, the Spread (as defined
herein) is less than Two Dollars ($2.00) per share, Executive may elect, with
respect to all or a portion of the Option Shares then outstanding (including
Option Shares which under the provisions of the Option Agreement are not then
exercisable by Executive), to surrender to the Company for cancellation the
unexercised Option, or portion thereof to which the election relates, and to
receive from the Company in

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exchange therefor a cash payment equal to the product of [i] Two Dollars ($2.00)
multiplied by [ii] the number of Option Shares then outstanding and not
previously exercised by Executive as to which the election relates. Such payment
by the Company shall be in lieu of Executive's exercise of the Option, or the
portion thereof to which the election relates. Executive may exercise this
election by delivering written notice of exercise to the Company (the "Election
Notice") on or before October 10, 2002. "Spread" shall mean the difference
between the exercise price per share of the Option Shares and the Fair Market
Value per share of the Option Shares. "Fair Market Value" per share shall mean
the average of the closing sale prices of the Common Stock as quoted on the
Nasdaq National Market System for the ten (10) consecutive trading days
immediately preceding the date of measurement.

                  B. If Executive's employment with the Company is terminated
without Cause or for Good Reason, within the six (6) month period following the
hiring by the Company of a chief executive officer, 250,000 of the Option Shares
(to the extent not then vested and exercisable) shall automatically vest and
become immediately exercisable by Executive (the "Vested Option Shares"). If the
Spread on the Vested Option Shares is less than Two Dollars ($2.00) per share as
of the date of Executive's termination of employment, Executive may elect, with
respect to all or any portion of the Vested Option Shares, to surrender to the
Company for cancellation the unexercised Option, or portion thereof to which the
election relates, and to receive from the Company in exchange therefor a cash
payment equal to [i] Two Dollars ($2.00) multiplied by the number of Vested
Option Shares as to which the election relates, multiplied by [ii] the number of
months during which Executive has been employed by the Company (with any partial
month in which Executive has served ten or more days counted as one month),
divided by [iii] 12. Such payment by the Company shall be in lieu of Executive's
exercise of the Option with respect to the Vested Option Shares, or the portion
of the Vested Option Shares to which the election relates. Executive may
exercise this election by delivering an Election Notice within ten (10) days
after the date of Executive's termination of employment.

         3. Payment. Subject to Executive's right to defer any payment as
provided in Section 6 of this Agreement, the Company shall pay Executive any
amount to which he is entitled under Section 2 of this Agreement in one lump sum
payment within thirty (30) days after receipt of Executive's Election Notice.
The Company shall deduct from any payments to Executive under this Agreement any
federal, state or local withholding or other taxes or charges which the Company
is required to deduct under applicable law.

         4. Forfeiture. Except as provided in Section 2.B of this Agreement, all
rights to any payments to Executive under this Agreement will be discontinued
and forfeited, and the Company will have no further obligation hereunder to
Executive under this Agreement upon the termination of Executive's employment
with the Company for any reason, whether voluntary or involuntary.

         5. Accrual of Payment Amounts. The Company shall accrue the sum of Five
Hundred Thousand Dollars ($500,000) per year in each of the first three years of
Executive's employment with the Company to assist it in satisfying its
liability, if any, to Executive under this Agreement. The Company shall remain
the owner of amounts accrued under this Agreement. Executive shall have

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only the Company's unsecured promise to pay. The rights accruing to Executive
shall be those of an unsecured general creditor of Company. Any contract, policy
or other asset which the Company may utilize to assure itself of the funds to
make payment shall not serve in any way as security to Executive for the
Company's performance under this Agreement. Any account established under this
Agreement by the Company is for bookkeeping purposes only and shall not be
considered to create a fund or trust for Executive or his beneficiary.

         6. Deferral Election.

                  A. Deferral Election. Executive may elect to defer the receipt
of all or a portion of the cash payments otherwise payable to him by the Company
under Section 2.A of this Agreement. An election by Executive to defer any
payment shall be made in writing and shall specify the dollar amount of the
payment to be deferred. Executive's written election under this Section 6 must
be delivered to the Company on or before December 31, 2001 and shall be
irrevocable.

                  B. Ownership and Investment of Deferred Amounts. Amounts
deferred by Executive may be kept in any investment vehicles or assets as may be
selected by the Company in its discretion. The Company shall be the owner of all
amounts deferred by Executive.

                  C. Disposition of Executive's Account. Payment of any amounts
deferred by Executive hereunder shall be made to Executive on or before the
first business day of the calendar month immediately following the month in
which Executive separates from service with the Company for any reason. Except
as otherwise expressly provided herein, amounts credited to Executive shall be
paid to Executive in a single sum cash payment. If Executive dies before
distribution of all amounts credited to him, any amounts remaining shall be
distributed to his designated beneficiary in a single sum payment. If there is
no valid beneficiary designation filed with the Company at the time of
Executive's death, distribution of amounts otherwise payable to Executive shall
be paid to the personal representative of Executive's estate as a part of his
estate.

         7. Nontransferability/Nonalienability. No right of Executive or his
beneficiary to receive any payment pursuant to this Agreement shall be subject
to alienation, transfer, sale, assignment, pledge, attachment, garnishment or
encumbrance of any kind. Any attempt to alienate, sell, transfer, assign, pledge
or otherwise encumber any such payments whether presently or thereafter payable
shall be void. Any payment due shall not in any manner be subject to the debts
or liabilities of Executive, his beneficiary or any other person.

         8. No Guarantee of Employment. This Agreement shall not be deemed to
constitute a contract of employment between the parties, nor shall any provision
restrict the Company's right to discharge Executive, with or without cause, or
restrict Executive's right to terminate his employment with the Company.

         9. Enforceability. The Company shall require any successor (whether
direct or indirect, by purchase, merger, consolidation or otherwise) to all or
substantially all of the stock or assets of

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the Company to assume and agree to perform this Agreement in the same manner and
to the same extent that the Company would be required to perform it if no such
succession had taken place.

         10. Notices. All notices required or permitted by this Agreement shall
be in writing and shall be given or made by personal delivery or by certified or
registered first-class mail, return receipt requested, postage prepaid, or by a
reputable overnight courier, at the following address, or such other address as
provided in writing by the person to receive the notice to the person providing
the notice: if to the Company: High Speed Access Corp., 4100 East Mississippi
Avenue, Denver, Colorado 80246; if to Executive: Daniel J. O'Brien, 31 Golden
Eagle Lane, Littleton, Colorado 80127. Any notice or other communication
hereunder shall be deemed to have been duly given or made if made by hand, when
delivered against receipt therefor or when attempted delivery shall be rejected,
as the case may be, if made by letter, upon deposit thereof in the mail, postage
prepaid, registered or certified, with return receipt requested, and if by
reputable overnight courier, when sent.

         11. Assignment. This Agreement may not be assigned by Executive. This
Agreement shall inure to the benefit of and be binding upon the Company and its
successors and assigns.

         12. Waiver of Breach. Failure or delay by either party to insist upon
compliance with any provision hereof shall not operate as, and is not be
construed as, a waiver or amendment of such provision. The waiver by either
party of a breach of any provision of this Agreement by the other shall not
operate or be construed as a waiver of any subsequent breach, whether occurring
under similar or dissimilar circumstances.

         13. Entire Agreement; Modification. This Agreement, the Employment
Agreement and the Option Agreement constitute the entire agreement between the
parties with regard to the subject matter hereof, superseding all prior
understandings and agreements, whether written or oral. This Agreement may not
be revoked or revised except by a writing signed by the Company and Executive.

         14. Severability. Should a court of competent jurisdiction determine
that any part of this Agreement is not fully enforceable, the unenforceable
portion shall be severed from the Agreement and the remainder of this Agreement
shall be fully enforced.

         15. Governing Law. This Agreement shall be governed by the laws of the
State of Colorado.

         16. Jurisdiction. The Company and Executive agree and consent to the
exclusive jurisdiction of the courts of the State of Colorado and of any federal
court located in Denver, Colorado in connection with any action or proceeding
arising out of or relating to this Agreement, any document or instrument
delivered pursuant to or in connection with this Agreement, or any breach of
this Agreement or any such document or instrument.

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                  IN WITNESS WHEREOF, the parties have executed this Agreement
as of the day and year first above written.

                                       HIGH SPEED ACCESS CORP.

                                       By: /s/ David A. Jones, Jr.
                                          --------------------------------------

                                       Title: Chairman
                                             -----------------------------------

                                           /s/ Daniel J. O'Brien
                                       -------------------------
                                       DANIEL J. O'BRIEN

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                                                                   EXHIBIT 10.54

                             HIGH SPEED ACCESS CORP.
                             STOCK OPTION AGREEMENT

                  THIS STOCK OPTION AGREEMENT ("Agreement") is made and entered
into effective as of the 1st day of October, 1999, by and between HIGH SPEED
ACCESS CORP, a Delaware corporation (the "Corporation"), and DANIEL J. O'BRIEN
("Optionee").

         RECITALS:

         A. The Corporation has adopted the High Speed Access Corp. 1999 Stock
Option Plan ("Plan") to promote the interests of the Corporation and its
shareholders by providing selected key employees of the Corporation with
additional incentive to invest in shares of the Corporation's common stock, $.01
par value per share ("Shares").

         B. The Corporation believes that such investment should increase the
personal interest and special effort of the key employees in providing for the
continued success and progress of the business of the Corporation and should
enhance the Corporation's efforts to attract and retain competent key employees.

         C. Optionee is one of the key employees for whom the Plan was adopted
and the Corporation desires to grant Optionee an option to acquire Shares
pursuant to the terms and conditions of the Plan and this Agreement.

         D. Concurrently with the execution hereof, the Corporation and Optionee
have entered into an Employment Agreement (the "Employment Agreement") and a
Supplemental Executive Compensation Agreement (the "Supplemental Agreement").

         AGREEMENT:

         NOW, THEREFORE, the parties hereby agree as follows:

         1. GRANT OF OPTION; OPTION PRICE. The Corporation hereby grants to
Optionee the right and option to purchase ("Option") all or any part of an
aggregate of 750,000 Shares (the "Option Shares") on the terms and conditions
set forth herein, at a purchase price per Option Share equal to the lower of the
Fair Market Value Per Share (as defined under the Plan) on (i) October 1, 1999
and (ii) January 1, 2000 ("Option Price"). To the extent the Option meets the
requirements of Section 422 of the Internal Revenue Code of 1986, as amended
("Code"), the Option Shares shall be considered incentive stock options as
defined in Section 422 of the Code.

         2. TERM OF OPTION AND VESTING. The Option shall continue for a term
commencing on the date hereof and ending at 5:00 p.m. Eastern Time on September
2, 2009 ("Termination Date"), unless sooner terminated as provided in Section 5.
Subject to the other terms and conditions set forth

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in this Agreement, including without limitation Sections 6 and 7 hereof, the
Option shall vest and Optionee shall have the right to exercise the Option as
follows:

                  2.1 FIRST YEAR. Up to twenty percent (20%) of the total Option
Shares may be exercised at any time after September 2, 2000.

                  2.2 SECOND YEAR. Up to an additional twenty percent (20%) of
the total Option Shares may be exercised at any time after two (2) years
following September 2, 2001.

                  2.3 THIRD YEAR. Up to an additional twenty percent (20%) of
the total Option Shares may be exercised at any time after three (3) years
following September 2, 2002.

                  2.4 FOURTH YEAR. Up to an additional twenty percent (20%) of
the total Option Shares may be exercised at any time after four (4) years
following September 2, 2003.

                  2.5 FIFTH YEAR. Up to an additional twenty percent (20%) of
the total Option Shares may be exercised at any time after five (5) years
following September 2, 2004.

         If an installment covers a fractional share, such installment shall be
rounded off to the next highest share, except for the final installment, which
will be for the balance of the total Option Shares.

         3. CONDITIONS TO EXERCISE OF OPTIONS.

                  3.1 EXERCISE OF OPTION. Optionee may exercise the Option by
delivering to the Corporation: [i] seven (7) days' prior written notice
("Exercise Notice") specifying the number of Shares as to which the Option is
being exercised and, if determined by counsel for the Corporation to be
necessary, representing that such Shares are being acquired for investment
purposes only and not for purpose of resale or distribution; and [ii] payment by
the Optionee, or a broker-dealer (as provided in Section 3.2 hereof), of the
Option Price for the number of Shares with respect to which the Option is being
exercised, in the manner provided in Section 3.2.

                  3.2 PAYMENT OF OPTION PRICE. The Corporation shall accept as
payment for the Option Price cash, a certified or cashiers check, whole shares
of Common Stock owned by the Optionee evidenced by negotiable certificates, such
other consideration as shall constitute lawful consideration for the issuance of
Common Stock and be approved by the Compensation Committee of the Corporation's
Board of Directors (the "Committee") established to administer the Plan
(including without limitation, assurance satisfactory to the Committee from a
broker registered under the Securities Exchange Act of 1934 of the delivery of
the proceeds of an imminent sale of Common Stock to be issued pursuant to the
exercise of such Option, such sale to be made at the direction of the Optionee),
or a combination of such methods of payment, which payment must be delivered to
the Corporation with the Exercise Notice.

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                  3.3 DELIVERY OF STOCK ON EXERCISE. On or before the expiration
of the seven (7) day Exercise Notice period, and provided that all conditions
precedent contained in this Agreement are satisfied, the Corporation shall,
without transfer or issuance tax or other incidental expenses to Optionee,
deliver to Optionee, at the offices of the Corporation, or at such other place
as may be mutually acceptable, or, at the election of the Corporation, by
certified mail addressed to Optionee at Optionee's address as shown in the
records of the Corporation, a certificate or certificates for the number of
Shares set forth in the Exercise Notice and for which the Corporation has
received payment in the manner prescribed herein. The Corporation may postpone
such delivery until it receives satisfactory proof that the issuance or transfer
of such Shares will not violate any of the provisions of the Securities Act of
1933, as amended, or the Securities Exchange Act of 1934, as amended, or any
rules or regulations of the Securities and Exchange Commission promulgated
thereunder, or the requirements of applicable state law relating to
authorization, issuance or sale of securities, or until there has been
compliance with the provisions of such acts or rules or the requirements of the
regulations. Options are exercisable only in whole Shares. If Optionee fails to
accept delivery of all or any part of the number of Shares specified in the
Exercise Notice upon tender of delivery thereof, Optionee's right to exercise
this Option with respect to such undelivered shares may be terminated by the
Corporation.

                  3.4 OPTION NOT TRANSFERABLE EXCEPT IN EVENT OF DEATH. During
Optionee's lifetime, the Option shall be exercisable only by Optionee, and
neither the Option nor any right hereunder shall be transferable except by will
or by the laws of descent and distribution, provided, however, if permitted
under the terms of the Plan, as in effect from time to time, transfers of the
Option, or portions thereof, shall also be permitted under this Agreement. The
Option may not be subject to execution or other similar process. If Optionee
attempts to alienate, assign, pledge, hypothecate or otherwise dispose of the
Option or any of Optionee's rights hereunder, except as provided herein, or in
the event of any levy, attachment, execution or similar process upon the rights
or interests hereby conferred, the Corporation may, in its sole and absolute
discretion, terminate the Option by notice to Optionee and it shall thereupon
become null and void.

         4. ACCELERATION OF EXERCISE DATES UPON DEATH OR DISABILITY. The Option
granted by this Agreement shall vest and become fully exercisable on or after
the date of termination of Optionee's employment with the Corporation due to
death or Disability.

         5. TERMINATION.

                  5.1 TERMINATION OF EMPLOYMENT FOR REASONS OTHER THAN
DISABILITY, DISCHARGE FOR CAUSE, OR DEATH. Upon the termination of Optionee's
employment with the Corporation for a reason other than Optionee's Disability,
discharge for Cause or death, the Option granted hereunder shall be exercisable,
to the extent exercisable at the date of Optionee's termination of employment,
at any time prior to the earlier of [a] three (3) months following receipt by
Optionee or the Corporation of a notice of termination of employment, or [b] the
Termination Date.

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                  5.2 TERMINATION OF EMPLOYMENT BECAUSE OF DISABILITY. If
Optionee's employment with the Corporation terminates because of Optionee's
Disability, the Option granted hereunder shall be exercisable at any time within
a period ending on the earlier of [a] one year after Optionee's Disability or
[b] the Termination Date.

                  5.3 TERMINATION OF EMPLOYMENT BECAUSE OF DISCHARGE FOR CAUSE.
This Agreement shall terminate and the Option granted hereunder shall be null
and void immediately upon the termination of Optionee's employment with the
Corporation through discharge for Cause, as defined in the Employment Agreement.

                  5.4 DEATH OF OPTIONEE. If Optionee dies [i] while employed by
the Corporation, or [ii] within three (3) months after ceasing to be an employee
of the Corporation, then the Option granted hereunder shall be exercisable by
Optionee's personal representative or the person or persons to whom Optionee's
rights under the Option shall pass by will or by application of the laws of
descent and distribution, at any time within a period ending on the earlier of
[a] one (1) year after Optionee's date of death or [b] the Termination Date.

         6. ACCELERATION UPON A CHANGE OF CONTROL. Notwithstanding any provision
of this Agreement to the contrary, upon a Change of Control, as defined in
Section 6.4 of this Agreement, the provisions of this Section 6 shall govern the
exerciseability of the Option granted hereunder.

                  6.1 ACCELERATION AMOUNT. The term "Change of Control Vested
Shares" shall mean the greatest of [i] 250,000, [ii] the number of Option Shares
that would have vested in accordance with Section 2 of this Agreement as of the
date of the first anniversary of the Change of Control, or [iii] the number of
Option Shares that would have vested upon a Change of Control in accordance with
Section 9 of the Plan. The term "Termination - Change of Control Vested Shares"
shall mean the greatest of [i] 250,000 or [ii] the number of Option Shares that
would have vested in accordance with Section 2 of this Agreement as of the date
of the second anniversary of the Change of Control.

                  6.2 VESTING UPON CHANGE OF CONTROL. Upon a Change of Control,
the Change of Control Vested Shares shall automatically vest and become
immediately exercisable by Optionee.

                  6.3 VESTING UPON TERMINATION FOLLOWING CHANGE OF CONTROL. If
Optionee's employment with the Corporation is terminated without Cause or for
Good Reason (as defined in Section 6.4 of this Agreement) within the six month
period following a Change of Control, then, to the extent not previously vested
and exercisable, the Termination - Change of Control Vested Shares shall
automatically vest and become immediately exercisable by Optionee.

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                  6.4 DEFINITIONS.

                  A. For purposes of this Agreement, "Change of Control" shall
mean (i) the purchase or other acquisition, sale or transfer of more than fifty
percent (50%) of the combined voting power of the Corporation, or (ii) the
approval by the stockholders of the Corporation of a reorganization, merger,
consolidation, or share exchange, in each case with respect to which persons who
were stockholders of the Corporation immediately prior to such reorganization,
merger, consolidation or share exchange do not, immediately thereafter, own more
than fifty percent (50%) of the combined voting power; provided, however, that
none of the foregoing shall be considered a Change of Control if Vulcan Ventures
Incorporated or any affiliate or affiliates thereof shall be the purchasing or
acquiring person or entity or shall as a result of such transaction own fifty
percent (50%) or more of the combined voting power of the Corporation or the
surviving entity in such transaction.

                  B. For purposes of this Agreement, "Cause" shall mean that
Optionee's employment with the Corporation shall have terminated upon the
occurrence of any of the following events:

                           (a) The discharge of Optionee for willful misconduct,
         dishonesty or fraud on Optionee's part in connection with the
         performance of any of his duties under the Employment Agreement; or

                           (b) The discharge of Optionee for a material breach
         by Optionee of any of the terms of Sections 8 or 10 of the Employment
         Agreement; or

                           (c) The discharge of Optionee upon a determination by
         the Board of Directors of the Corporation, acting in good faith and
         with reasonable justification, that Optionee's performance in his
         position as Chief Operating Officer of the Corporation has been
         unsatisfactory, after first having given written notice to Optionee
         that his performance has been unsatisfactory (which notice shall set
         forth in reasonable detail the nature of the unsatisfactory
         performance), and Optionee having failed to cure such unsatisfactory
         performance within thirty (30) days thereafter to the reasonable
         satisfaction of the Board; or

                           (d) The discharge of Optionee for conviction of a
         felony or a crime involving moral turpitude.

                  C. For purposes of this Agreement, "Good Reason" shall mean
that Optionee shall have terminated his employment with the Corporation upon the
determination by Optionee that any or more of the following events has occurred:

                           (a) a material change in Optionee's duties as Chief
         Operating Officer or an adverse change in Optionee's title; or

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                           (b) any reduction by the Corporation in Optionee's
         Salary or a material reduction in Optionee's benefits.

         7. ACCELERATION UPON CERTAIN TERMINATION EVENTS. Upon Optionee's
termination of employment with the Corporation without Cause or for Good Reason,
within the six month period following the Corporation's hiring of a chief
executive officer, 250,000 of the Option Shares shall (to the extent not then
vested and exercisable) automatically vest and become exercisable by Optionee.

         8. ADJUSTMENT OF SHARES. In the event of capital adjustment after the
Date of Grant in the Common Stock of the Corporation by reason of any
reorganization, recapitalization, stock split, stock dividend, combination or
exchange of shares, merger or consolidation, or any other change (after the
effective date of the Plan) in the nature or number of shares of Common Stock of
the Corporation, a proportionate adjustment shall be made in the Option Price
and the number and kind of shares of Common Stock covered by outstanding Options
granted pursuant to this Agreement. By virtue of such a capital adjustment, the
price of any share under Option shall be adjusted so that there will be no
change in the aggregate purchase price payable upon exercise of any such Option.
Such determination by the Compensation Committee shall be conclusive.

         9. SECURITIES LAWS. Optionee understands that the shares issuable upon
exercise of the Option have not been registered under the Securities Act of
1933, as amended (the "Act"), or under the laws of any other jurisdiction, and
that the Corporation does not contemplate registering, and is under no
obligation to register, such securities. Optionee understands and agrees that
the shares issuable upon exercise of the Option may not be sold, transferred,
pledged or otherwise disposed of unless they are subsequently registered under
the Act and, where required, under the laws of other jurisdictions or an
exemption from registration is available and the Corporation is in receipt of an
opinion of counsel satisfactory to the Corporation to such effect.

         10. TAX WITHHOLDING. The Corporation shall have the right to require
Optionee to remit to the Corporation an amount sufficient to satisfy all
federal, state and local withholding tax requirements, or, alternatively, the
Corporation shall have the right to withhold from any payment due Optionee or
retain Common Stock otherwise payable to the Optionee pursuant to exercise of an
Option in an amount sufficient to satisfy such withholding requirements, before
the delivery to the Optionee of any certificate(s) for shares of Common Stock.

         11. MISCELLANEOUS PROVISIONS.

                  11.1 OPTION TERMINATES UPON TERMINATION DATE. Notwithstanding
any provision contained herein to the contrary, this Option shall terminate and
become null and void and of no effect after the Termination Date.

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                  11.2 NO RIGHTS AS A SHAREHOLDER. Optionee shall not have any
of the rights of a shareholder regarding the Option Shares, except to the extent
that certificate(s) for such Option Shares shall have been issued upon the
exercise of the Option as provided herein.

                  11.3 CAPTIONS. The captions and section headings used herein
are for convenience only, shall not be deemed part of this Agreement and shall
not in any way restrict or modify the context and substance of any section or
paragraph of this Agreement.

                  11.4 GOVERNING LAW. This Agreement shall be governed by, and
construed in accordance with, the laws of the State of Delaware.

                  11.5 ENTIRE AGREEMENT. This Agreement, the Employment
Agreement, the Supplemental Agreement (which is incorporated by reference herein
as if fully set forth herein) and the Plan contain the entire agreement between
the parties regarding its subject matter. It supersedes all prior written or
contemporaneous oral agreements related thereto.

                  11.6 AMENDMENT AND MODIFICATIONS. No amendment or other
modification to this Agreement shall be binding upon any party unless executed
in writing by all of the parties hereto.

                  11.7 WAIVER. No waiver by any party of any of the provisions
of this Agreement will be deemed, or will constitute, a waiver of any other
provision, whether similar, nor will any waiver constitute a continuing waiver.
No waiver will be binding unless executed in writing by the party making the
waiver.

                  11.8 CUMULATIVE REMEDIES. No right or remedy conferred upon or
reserved to any of the parties under the terms of this Agreement is intended to
be, nor shall it be deemed, exclusive of any other right or remedy provided
herein or by law or equity, but each shall be cumulative of every other right or
remedy.

                  11.9 CAPITALIZED TERMS. Capitalized terms in this Agreement
shall have the meaning ascribed to such terms in the Plan unless otherwise
defined herein.

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         IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date first written above.

                                       HIGH SPEED ACCESS CORP.

                                       By: /s/ David A. Jones, Jr.
                                          --------------------------------------

                                       Title: Chairman
                                             -----------------------------------

                                                 ("Corporation")

                                           /s/ Daniel J. O'Brien
                                       -----------------------------------------
                                       DANIEL J. O'BRIEN
                                                 ("Optionee")

                                       8

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