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

<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-2000
<PERIOD-END>                               SEP-30-2000
<CASH>                                          16,689
<SECURITIES>                                    89,325
<RECEIVABLES>                                   43,038
<ALLOWANCES>                                         0
<INVENTORY>                                     10,157
<CURRENT-ASSETS>                               163,718
<PP&E>                                          45,193
<DEPRECIATION>                                  21,448
<TOTAL-ASSETS>                                 195,556
<CURRENT-LIABILITIES>                           18,507
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           547
<OTHER-SE>                                     161,567
<TOTAL-LIABILITY-AND-EQUITY>                   195,556
<SALES>                                         44,795
<TOTAL-REVENUES>                                63,273
<CGS>                                            7,097
<TOTAL-COSTS>                                   47,831
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                  91
<INCOME-PRETAX>                                 15,349
<INCOME-TAX>                                     4,115
<INCOME-CONTINUING>                             11,234
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    11,234
<EPS-BASIC>                                       0.21
<EPS-DILUTED>                                     0.20