EXHIBIT 12.1

Statement Regarding Computation of Ratios of Earnings to Fixed Charges  

(in thousands, except ratio)

	Fiscal Year Ended December 31,										Three Months Ended March 31,
	1998		1999		2000		2001		2002		2002		2003
Income before provision for income taxes	$	24,976	$	42,013	$	80,875	$	50,736	$	82,389	$	19,201	$	22,842
Fixed charges:
Interest expense, including amortization of debt issuance costs	$	—	$	—	$	12,787	$	25,644	$	10,429	$	3,259	$	1,809
Assumed interest element in rent		667		933		1,367		2,067		2,300		516		671
Total fixed charges	$	667	$	933	$	14,154	$	27,711	$	12,729	$	3,775	$	2,480
Income before provision for income taxes plus fixed charges	$	25,643	$	42,946	$	95,029	$	78,447	$	95,118	$	22,976	$	25,322
Ratio of earnings to fixed charges		38.5x		46.0x		6.7x		2.8x		7.5x		6.1x		10.2x