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 June 30,				Six Months Ended June 30,
	1998		1999		2000		2001		2002		2002		2003		2002		2003
Income before provision for income taxes	$	24,976	$	42,013	$	80,875	$	50,736	$	82,389	$	22,760	$	21,712	$	41,961	$	44,554
Fixed charges:
Interest expense, including amortization of debt issuance costs	$	—	$	—	$	12,787	$	25,644	$	10,429	$	2,739	$	2,120	$	5,998	$	3,929
Assumed interest element in rent		667		933		1,367		2,067		2,300		555		648		1,071		1,319
Total fixed charges	$	667	$	933	$	14,154	$	27,711	$	12,729	$	3,294	$	2,768	$	7,069	$	5,248
Income before provision for income taxes plus fixed charges	$	25,643	$	42,946	$	95,029	$	78,447	$	95,118	$	26,054	$	24,480	$	49,030	$	49,802
Ratio of earnings to fixed charges		38.5x		46.0x		6.7x		2.8x		7.5x		7.9x		8.8x		6.9x		9.5x