<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONDENSED STATEMENT OF OPERATIONS, THE CONDENSED BALANCE SHEET AND THE
ACCOMPANYING NOTES TO THE CONDENSED FINANCIAL STATEMENTS, AND IS QUALIFIED IN
ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
       
<S>                                        <C>                     <C>   
<PERIOD-TYPE>                              3-MOS                   3-MOS 
<FISCAL-YEAR-END>                          DEC-31-1998<F1>         DEC-31-1997
<PERIOD-START>                             APR-01-1998             APR-01-1997
<PERIOD-END>                               JUN-30-1998             JUN-30-1997
<CASH>                                           5,303                   1,695
<SECURITIES>                                         0                       0
<RECEIVABLES>                                   56,236                  27,658
<ALLOWANCES>                                         0                       0
<INVENTORY>                                     64,852                  47,326
<CURRENT-ASSETS>                               139,898                  84,969
<PP&E>                                          20,072                  16,390
<DEPRECIATION>                                       0                       0
<TOTAL-ASSETS>                                 194,649                 133,271
<CURRENT-LIABILITIES>                           71,413                  38,512
<BONDS>                                              0                       0
<PREFERRED-MANDATORY>                                0                       0
<PREFERRED>                                          0                       0
<COMMON>                                            31                      29
<OTHER-SE>                                     112,725                  87,212
<TOTAL-LIABILITY-AND-EQUITY>                   194,649                 133,271
<SALES>                                         43,171                  31,087
<TOTAL-REVENUES>                                43,171                  31,087
<CGS>                                           24,261                  18,046
<TOTAL-COSTS>                                   24,261                  18,046
<OTHER-EXPENSES>                                21,253                  15,975
<LOSS-PROVISION>                                     0                       0
<INTEREST-EXPENSE>                                 848                     301
<INCOME-PRETAX>                                (4,192)                 (3,322)
<INCOME-TAX>                                   (1,613)                 (1,315)
<INCOME-CONTINUING>                            (2,579)                 (2,007)
<DISCONTINUED>                                       0                       0
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                                   (2,579)                 (2,007)
<EPS-PRIMARY>                                   (0.22)                  (0.18)
<EPS-DILUTED>                                   (0.22)                  (0.18)
<FN>
<F1>SEE NOTE 4 TO THE CONDENSED CONSOLIDATED FINANCIAL STATEMENTS.
</FN>
        

</TABLE>