EXHIBIT 12.1
STATEMENT OF COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES
<Table>
<Caption>
Year Ended December 31,
-----------------------------------------------------
1997 1998 1999 2000 2001
-------- -------- -------- -------- --------
(in thousands, except ratios)
Fixed Charges:
Interest Expense $ 617 $ 7,541 $ 12,357 $ 18,036 $ 15,540
Amortization of Deferred Financing Costs 54 737 777 1,012 1,857
Implied Interest Component of Rents 204 2,713 4,468 5,036 6,876
-------- -------- -------- -------- --------
Total Fixed Charges 875 10,991 17,602 24,084 24,273
======== ======== ======== ======== ========
Earnings (before fixed charges, extraordinary loss and income taxes):
Income before income taxes and extraordinary loss (3,928) 21,982 26,403 7,233 27,781
Fixed Charges as above 875 10,991 17,602 24,084 24,273
-------- -------- -------- -------- --------
Total (3,053) 32,973 44,005 31,317 52,054
======== ======== ======== ======== ========
Ratio of Earnings to Fixed Charges NM 3.00 2.50 1.30 2.14
</Table>