Joint Filing Agreement

Pursuant to Rule 13d-1(k)(1) promulgated under the Securities Exchange Act of 1934, as amended, the undersigned agree that Amendment No. 1 to the Statement on Schedule 13D to which this exhibit is attached is filed on behalf of each of them in the capacities set forth below.

Date: November 27, 2006

CDRS ACQUISITION LLC
By:	/s/ Theresa A. Gore
Name:	Theresa A. Gore
Title:	Executive Vice President and Treasurer
CLAYTON, DUBILIER & RICE FUND VII, L.P.
By:	CD&R Associates VII, Ltd., its general partner
By:	/s/ Theresa A. Gore
Name:	Theresa A. Gore
Title:	Vice President, Treasurer and Assistant Secretary
CD&R ASSOCIATES VII, LTD.
By:	/s/ Theresa A. Gore
Name:	Theresa A. Gore
Title:	Vice President, Treasurer and Assistant Secretary

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CD&R ASSOCIATES VII, L.P.
By:	CD&R Investment Associates VII, Ltd., its general partner
By:	/s/ Theresa A. Gore
Name:	Theresa A. Gore
Title:	Vice President, Treasurer and
	Assistant Secretary
CD&R INVESTMENT ASSOCIATES VII, LTD.
By:	/s/ Theresa A. Gore
Name:	Theresa A. Gore
Title:	Vice President, Treasurer and Assistant Secretary

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CD&R PARALLEL FUND VII, L.P.
By:	CD&R Parallel Fund Associates VII, Ltd., its general partner
By:	/s/ Theresa A. Gore
Name:	Theresa A. Gore
Title:	Vice President, Treasurer and Assistant Secretary
CD&R PARALLEL FUND ASSOCIATES VII, LTD.
By:	/s/ Theresa A. Gore
Name:	Theresa A. Gore
Title:	Vice President, Treasurer and Assistant Secretary

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