<TABLE> <S> <C>
<ARTICLE> 5
<LEGEND> THIS SCHEDULE CONTAINS SUMMARY FINANCIAL
INFORMATION EXTRACTED FROM 10Q DATED
SEPTEMBER 30, 2000 AND IS QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO SUCH FINANCIAL
STATEMENTS
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 9-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-END> SEP-30-2000
<CASH> 90,609
<SECURITIES> 131,855
<RECEIVABLES> 43,842
<ALLOWANCES> 1,522
<INVENTORY> 0
<CURRENT-ASSETS> 316,756
<PP&E> 97,975
<DEPRECIATION> 64,547
<TOTAL-ASSETS> 540,812
<CURRENT-LIABILITIES> 89,428
<BONDS> 0
<COMMON> 952
0
0
<OTHER-SE> 413,475
<TOTAL-LIABILITY-AND-EQUITY> 540,812
<SALES> 168,180
<TOTAL-REVENUES> 168,180
<CGS> 121,350
<TOTAL-COSTS> 121,350
<OTHER-EXPENSES> 0
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 0
<INCOME-PRETAX> 57,684
<INCOME-TAX> 23,075
<INCOME-CONTINUING> 34,609
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 34,609
<EPS-BASIC> 3.64
<EPS-DILUTED> 3.63
</TABLE>
