<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM CONSOLIDATED
BALANCE SHEET AND CONSOLIDATED STATEMENT OF INCOME AND IS QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.

<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          MAR-31-2000
<PERIOD-START>                             APR-01-1999
<PERIOD-END>                               MAR-31-2000
<CASH>                                          48,515
<SECURITIES>                                    21,807
<RECEIVABLES>                                   11,144
<ALLOWANCES>                                       754
<INVENTORY>                                      3,131
<CURRENT-ASSETS>                                90,492
<PP&E>                                          12,603
<DEPRECIATION>                                   6,946
<TOTAL-ASSETS>                                  96,748
<CURRENT-LIABILITIES>                           15,626
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                            31
<OTHER-SE>                                      41,424
<TOTAL-LIABILITY-AND-EQUITY>                    96,748
<SALES>                                         57,206
<TOTAL-REVENUES>                                86,159
<CGS>                                           21,139
<TOTAL-COSTS>                                   22,857
<OTHER-EXPENSES>                                42,102
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                  31
<INCOME-PRETAX>                                 21,200
<INCOME-TAX>                                     8,539
<INCOME-CONTINUING>                             15,212
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    15,212
<EPS-BASIC>                                       0.70
<EPS-DILUTED>                                     0.56