<PAGE>
Exhibit 12.1
COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES
($ in 000's)
<TABLE>
<CAPTION>
Fiscal Year Ended December 31, Three
--------------------------------------- Months Ended
1995 1996 1997 1998 1999 March 31, 2000
------ ------- ------- ------- ------- --------------
<S> <C> <C> <C> <C> <C> <C>
Pre-tax income (loss)... $6,454 $17,130 $(3,636) $ 5,137 $14,027 $10,083
Fixed charges:
Interest charges,
including interest
expensed, interest
capitalized and
amortization of
deferred financing
costs.................. 1,985 3,068 4,009 3,889 5,296 1,446
Estimated interest
included within rental
expense................ 350 638 1,404 2,141 2,644 750
------ ------- ------- ------- ------- -------
Total fixed charges..... $2,335 $ 3,706 $ 5,413 $ 6,030 $ 7,940 $ 2,196
Pre-tax income (loss)
plus fixed charges and
amortization of
capitalized interest,
less interest
capitalized............ $8,789 $20,836 $ 1,777 $11,167 $21,967 $12,279
Ratio of earnings to
fixed charges.......... 3.76 5.62 0.33 1.85 2.77 5.59
====== ======= ======= ======= ======= =======
</TABLE>
