Exhibit 12.1

Earnings to Fixed Charge Calculation

	2003			2004			2005			2006			Period from January 1 to November 9, 2007			Period from November 10 to December 31, 2007			Six Months Ended June 30, 2008
	(Dollars in millions, except ratios)
Fixed charges
Interest expense	$	4.6		$	4.4		$	5.5		$	6.0		$	5.3		$	50.3		$	151.2
Capitalized interest		0.2			0.4			0.5			0.6			0.4			0.1			0.3
Interest within rental expense		17.7			17.7			17.4			16.9			15.0			2.3			8.5
Total fixed charges	$	22.5		$	22.5		$	23.4		$	23.5		$	20.7		$	52.7		$	160.0
Earnings
Earnings (loss) before income taxes	$	150.2		$	41.2		$	173.8		$	259.3		$	168.3		$	(19.2	)	$	(58.1	)
Less:
Capitalized interest		(0.2	)		(0.4	)		(0.5	)		(0.6	)		(0.4	)		(0.1	)		(0.3	)
Plus
Amortization of capitalized interest		0.4			0.3			0.3			0.4			0.4			0.1			0.2
Plus fixed charges		22.5			22.5			23.4			23.5			20.7			52.7			160.0
Total “earnings” as defined	$	172.9		$	63.6		$	197.0		$	282.6		$	189.0		$	33.5		$	101.8
Ratio of earnings to fixed charges		7.7			2.8			8.4			12.0			9.1			—			—
Deficiency		—			—			—			—			—			(19.2	)		(58.2	)