EXHIBIT 21 - POWER OF ATTORNEY
POWER OF ATTORNEY
KNOW ALL PERSONS BY THESE PRESENTS that STONE STREET FUND 2000, L.P.
(the "Company") does hereby make, constitute and appoint each of Hans L.
Reich and Roger S. Begelman, acting individually, its true and lawful
attorney, to execute and deliver in its name and on its behalf whether the
Company is acting individually or as representative of others, any and all
filings required to be made by the Company under the Securities Exchange
Act of 1934, as amended, giving and granting unto each said
attorney-in-fact power and authority to act in the premises as fully and to
all intents and purposes as the Company might or could do if personally
present by one of its authorized signatories, hereby ratifying and
confirming all that said attorney-in-fact shall lawfully do or cause to be
done by virtue hereof.
THIS POWER OF ATTORNEY shall remain in full force and effect until
either revoked in writing by the undersigned or until such time as the
person or persons to whom power of attorney has been hereby granted
cease(s) to be an employee of The Goldman Sachs Group, Inc. or one of its
affiliates.
IN WITNESS WHEREOF, the undersigned has duly subscribed these presents
as of March 20, 2000.
STONE STREET FUND 2000, L.P.
By: Stone Street 2000, L.L.C.
By: /s/ Kaca B. Enquist
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Name: Kaca B. Enquist
Title: Vice President
