Exhibit 12.1

Calculation of Ratio of Earnings to Fixed Charges

	Year Ended December 31,
	2000		2001		2002		2003		2004		Nine Months Ended September 30, 2005
	(In thousands, except ratio of earnings to fixed charges)
Income from continuing operations before income taxes	$	5,197	$	4,837	$	4,132	$	17,288	$	43,919	$	48,689
Fixed charges(1)
Interest expense		34		26		102		32		1,661		4,987
Amortization of debt issuance cost		—		—		—		—		253		566
Interest included in rental expense		230		264		365		350		425		473
Total fixed charges	$	264	$	290	$	467	$	382	$	2,339	$	6,026
Earnings(2)	$	5,461	$	5,127	$	4,599	$	17,670	$	46,258	$	54,715
Ratio of earnings to fixed charges		20.7		17.7		9.8		46.3		19.8		9.1

(1) “Fixed charges” consist of interest expense on indebtedness, amortization of debt issuance costs and the estimated portion of rental expense deemed a reasonable approximation of this interest factor.

(2) “Earnings” consist of income from continuing operations before income taxes plus fixed charges.