2.   This statement is being filed by GS Group, Goldman Sachs, GS Advisors
     2000, L.L.C. ("GS Advisors"), Goldman, Sachs & Co. oHG ("GS oHG"),
     Goldman, Sachs Management GP GmbH ("GS GmbH"), GS Employee Funds 2000
     GP, L.L.C. ("GS Employee 2000"), GS Capital Partners 2000, L.P. ("GS
     Capital"), GS Capital Partners 2000 Offshore, L.P. ("GS Offshore"), GS
     Capital Partners 2000 GmbH & Co. Beteiligungs KG ("GS Germany"), GS
     Capital Partners 2000 Employee Fund, L.P. ("GS Employee"), Goldman
     Sachs Direct Investment Fund 2000, L.P. ("GS Direct" and, together
     with GS Capital, GS Offshore, GS Germany and GS Employee, the
     "Purchasers") (GS Group, Goldman Sachs, GS Advisors, GS oHG, GS GmbH,
     GS Employee 2000, and the Purchasers, collectively, the "Reporting
     Persons"). The principal business address of each Reporting Person
     (other than G.S. oHG, GS GmbH, GS Offshore and GS Germany) is 85 Broad
     Street, New York, NY 10004. The principal business address for GS
     Offshore is c/o M&C Corporate Services Limited, P.O. Box 309, Grand
     Cayman, Cayman Islands. The principal business address for each of GS
     Germany, GS GmbH and GS oHG is MesseTurm, 60308 Frankfurt am Main,
     Germany. Due to the electronic system's limitation of 10 Reporting
     Persons per joint filing, this statement is being filed in duplicate.

9.   GS Group may be deemed to own beneficially and indirectly an aggregate
     of 9,991,119 shares of Common Stock by reason of the Purchasers'
     beneficial ownership of (i) 200,604 shares of Preferred Stock, which
     are convertible into 8,341,119 shares of Common Stock, (ii) Warrants
     to purchase 1,072,500 shares of Common Stock at an exercise price of
     $28.62 per share ("Warrants") and (iii) warrants to purchase 577,500
     shares of Common Stock at an exercise of $26.28 per share (the
     "November Warrants"). Goldman Sachs may be deemed to own beneficially
     and indirectly an aggregate of 9,991,119 shares of Common Stock by
     reason of the Purchasers' beneficial ownership of (i) 200,604 shares
     of Preferred Stock, which are convertible into 8,341,119 shares of
     Common Stock and (ii) Warrants to purchase 1,072,500 shares of Common
     Stock and (iii) November Warrants to purchase 577,500 shares of Common
     Stock. Affiliates of GS Group and Goldman Sachs are the general
     partners or managing partners of the Purchasers. Goldman Sachs is the
     investment manager of each of the Purchasers. Goldman Sachs is an
     indirect wholly owned subsidiary of GS Group. Each of Goldman Sachs
     and GS Group disclaims beneficial ownership of the securities owned by
     the Purchasers except to the extent of their pecuniary interest
     therein. Each of the Reporting Persons other than Goldman Sachs and GS
     Group disclaims beneficial ownership of the shares of Common Stock
     directly owned by Goldman Sachs and GS Group. GS Capital may be deemed
     to own beneficially and directly and its general partner, GS Advisors,
     may be deemed to own beneficially and indirectly an aggregate of
     5,509,787 shares of Common Stock by reason of GS Capital's beneficial
     ownership of (i) 110,627 shares of Preferred Stock, which are
     convertible into 4,599,875 shares of Common Stock, (ii) Warrants to
     purchase 591,442 shares of Common Stock and (iii) November Warrants to
     purchase 318,470 shares of Common Stock. GS Advisors disclaims
     beneficial ownership of the securities reported herein except to the
     extent of its pecuniary interest therein. GS Offshore may be deemed to
     own beneficially and directly, and its general partner, GS Advisors,
     may be deemed to own beneficially and indirectly an aggregate of
     2,002,019 shares of Common Stock by reason of GS Offshore's beneficial
     ownership of (i) 40,197 shares of Preferred Stock, which are
     convertible into 1,671,392 shares of Common Stock, (ii) Warrants to
     purchase 214,908 shares of Common Stock and (iii) November Warrants to
     purchase 115,719 shares of Common Stock. GS Advisors disclaims
     beneficial ownership of the securities reported herein except to the
     extent of its pecuniary interest therein. GS Germany may be deemed to
     own beneficially and directly and each of (a) GS GmbH, the managing
     partner of GS Germany and (b) GS oHG, the sole stockholder of GS GmbH,
     may be deemed to own beneficially and indirectly an aggregate of
     230,214 shares of Common Stock by reason of GS Germany's beneficial
     ownership of (i) 4,622 shares of Preferred Stock, which are
     convertible into 192,182 shares of Common Stock, (ii) Warrants to
     purchase 24,721 shares of Common Stock and (iii) November Warrants to
     purchase 13,311 shares of Common Stock. Each of GS GmbH and GS oHG
     disclaims beneficial ownership of the securities reported herein
     except to the extent of its pecuniary interest therein. GS Employee
     may be deemed to own beneficially and directly and its general
     partner, GS Employee 2000, may be deemed to own beneficially and
     indirectly an aggregate of 1,749,552 shares of Common Stock by reason
     of GS Employee's beneficial ownership of (i) 35,128 shares of
     Preferred Stock, which are convertible into 1,460,623 shares of Common
     Stock, (ii) Warrants to purchase 187,804 shares of Common Stock and
     (iii) November Warrants to purchase 101,125 shares of Common Stock. GS
     Employee 2000 disclaims beneficial ownership of the securities
     reported herein except to the extent of its pecuniary interest
     therein. GS Direct may be deemed to own beneficially and directly, and
     its general partner, GS Employee 2000, may be deemed to own
     beneficially and indirectly an aggregate of 499,547 shares of Common
     Stock by reason of GS Direct's beneficial ownership of (i) 10,030
     shares of Preferred Stock, which are convertible into 417,047 shares
     of Common Stock, (ii) Warrants to purchase 53,625 shares of Common
     Stock and (iii) November Warrants to purchase 28,875 shares of Common
     Stock. GS Employee 2000 disclaims beneficial ownership of the
     securities reported herein except to the extent of its pecuniary
     interest therein.