Exhibit 12.1

Ratio of Earnings to Fixed Charges

	Successor			Predecessor
	Nine Months Ended December 31, 2007			Three Months Ended March 25, 2007		Years Ended December 31,
						2006		2005		2004
Earnings
- Pre-tax (loss) income	$	(5.0	)	$	16.6	$	140.6	$	49.5	$	(18.6	)
- Fixed charges		160.4			17.9		99.7		96.3		102.8
Net earnings	$	155.4		$	34.5	$	240.3	$	145.8	$	84.2
Fixed Charges
- External interest expense	$	151.0		$	—	$	—	$	—	$	—
- Intercompany interest expense, net		—			15.8		91.6		88.4		93.6
- Amortization of deferred financing costs		7.2			—		—		—		—
- Estimate of interest expense within rental expense		2.2			2.1		8.1		7.9		9.2
Total fixed charges	$	160.4		$	17.9	$	99.7	$	96.3	$	102.8
Ratio of earnings to fixed charges(1)		0.97	X		—		—		—		—
Deficiency		5.0			—		—		—		—

(1) For purposes of computing the ratio of earnings to fixed charges, earnings consist of income before income tax plus fixed charges. Fixed charges consist of interest expense and a portion of operating rental expense that management believes is representative of the interest component of rental expense. For periods in which the ratio of earnings is less than 1.0, the amounts shown as Deficiency represent the additional earnings that would be necessary to raise the ratio to 1.0. For the Predecessor periods, the ratio of earnings to fixed charges is not meaningful, given the fact that debt was not held by the Predecessor business.