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Exhibit 12.1

Computation of Ratios of Earnings to Fixed Charges

		Three Months ended March 31, 2007		Year ended December 31, 2006		Year ended December 31, 2005		Period from August 12, 2004 (Inception) through December 31, 2004
		(dollar amounts in thousands)
Earnings:
Income (loss) before equity in income of unconsolidated affiliate and income tax expense		$	42,219	$	130,574	$	58,225	$	(6,937	)
	Add: Fixed charges from below		200,066		741,680		279,718		975
Total earnings		$	242,285	$	872,254	$	337,943	$	(5,962	)
Fixed charges:
Interest expense(1)		$	200,066	$	741,680	$	279,718	$	975
Total fixed charges		$	200,066	$	741,680	$	279,718	$	975
Ratio of Earnings to Fixed Charges			1.2x		1.2x		1.2x		(2)

(1)

Includes amortization of capitalized expenses relating to indebtedness.

(2)

Fixed charges exceeded earnings by approximately $6.0 million for the period from August 12, 2004 (the date of inception) through December 31, 2004.

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Computation of Ratios of Earnings to Fixed Charges