<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
ACCOMPANYING CONDENSED CONSOLIDATED FINANCIAL STATEMENTS AND IS QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-START>                             JAN-01-1999
<PERIOD-END>                               JUN-30-1999
<CASH>                                          29,759
<SECURITIES>                                    21,063
<RECEIVABLES>                                    7,748
<ALLOWANCES>                                         0
<INVENTORY>                                      1,586
<CURRENT-ASSETS>                                64,128
<PP&E>                                           3,045
<DEPRECIATION>                                       0
<TOTAL-ASSETS>                                  69,644
<CURRENT-LIABILITIES>                            8,721
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                            12
<OTHER-SE>                                      60,911
<TOTAL-LIABILITY-AND-EQUITY>                    69,644
<SALES>                                         34,758
<TOTAL-REVENUES>                                34,758
<CGS>                                            6,757
<TOTAL-COSTS>                                    6,757
<OTHER-EXPENSES>                                21,811
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                  7,366
<INCOME-TAX>                                     2,209
<INCOME-CONTINUING>                              5,157
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     5,157
<EPS-BASIC>                                        .43
<EPS-DILUTED>                                      .41