<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM CONSOLIDATED
BALANCE SHEET AND CONSOLIDATED STATEMENT OF INCOME.
</LEGEND>
<MULTIPLIER> 1,000

                                                                                                     

<PERIOD-TYPE>                   12-MOS               3-MOS                3-MOS               9-MOS              9-MOS

<FISCAL-YEAR-END>                      MAR-31-1999          MAR-31-2000          MAR-31-1999        MAR-31-2000         MAR-31-1999

<PERIOD-START>                         APR-01-1998          OCT-01-1999          OCT-01-1998        APR-01-1999         APR-01-19
98
<PERIOD-END>                           MAR-31-1999          DEC-31-1999          DEC-31-1998        DEC-31-1999         DEC-31-1998

<CASH>                                      25,477               51,277                    0                  0
 0
<SECURITIES>                                     0               12,747                    0                  0                   0

<RECEIVABLES>                                7,586                9,625                    0                  0
 0
<ALLOWANCES>                                 1,036                1,025                    0                  0                   0

<INVENTORY>                                  3,165                4,452                    0                  0
 0
<CURRENT-ASSETS>                            37,426               81,906                    0                  0                   0

<PP&E>                                       8,505               11,462                    0                  0
 0
<DEPRECIATION>                               4,278                6,135                    0                  0                   0

<TOTAL-ASSETS>                              43,974               87,554                    0                  0
 0
<CURRENT-LIABILITIES>                       12,937               15,397                    0                  0                   0

<BONDS>                                          0                    0                    0                  0
 0
<PREFERRED-MANDATORY>                            0                    0                    0                  0                   0

<PREFERRED>                                  5,964                    0                    0                  0
 0
<COMMON>                                    44,181                   30                    0                  0                   0

<OTHER-SE>                                (43,563)               36,973                    0                  0
 0
<TOTAL-LIABILITY-AND-EQUITY>                43,974               87,554                    0                  0                   0

<SALES>                                          0               14,584               13,327             40,939              36,7
37
<TOTAL-REVENUES>                                 0               22,842               17,471             62,217              48,880

<CGS>                                            0                5,389                4,927             15,290              13,6
14
<TOTAL-COSTS>                                    0                5,811                5,149             16,532              14,452

<OTHER-EXPENSES>                                 0               11,026                8,024             30,564              23,0
79
<LOSS-PROVISION>                                 0                    0                    0                  0                   0

<INTEREST-EXPENSE>                               0                    0                    0                  0
 0
<INCOME-PRETAX>                                  0                6,005                4,298             15,121              11,349

<INCOME-TAX>                                     0                2,467                1,629              6,031               4,3
27
<INCOME-CONTINUING>                              0                    0                    0                  0                   0

<DISCONTINUED>                                   0                    0                    0                  0
 0
<EXTRAORDINARY>                                  0                    0                    0                  0                   0

<CHANGES>                                        0                    0                    0                  0
 0
<NET-INCOME>                                     0                4,371                2,893             10,699               7,689

<EPS-BASIC>                                      0                 0.17                 0.15               0.53                0.
39
<EPS-DILUTED>                                    0                 0.16                 0.12               0.40                0.32