<TABLE> <S> <C>
<ARTICLE> 5
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-START> JAN-01-2000
<PERIOD-END> JUN-30-2000
<CASH> 245,842
<SECURITIES> 415
<RECEIVABLES> 179,271
<ALLOWANCES> 5,794
<INVENTORY> 0
<CURRENT-ASSETS> 471,768
<PP&E> 122,735
<DEPRECIATION> 83,587
<TOTAL-ASSETS> 665,965
<CURRENT-LIABILITIES> 162,916
<BONDS> 0
0
0
<COMMON> 967
<OTHER-SE> 495,211
<TOTAL-LIABILITY-AND-EQUITY> 665,965
<SALES> 543,106
<TOTAL-REVENUES> 543,106
<CGS> 413,605
<TOTAL-COSTS> 524,018
<OTHER-EXPENSES> (52,600)
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 40
<INCOME-PRETAX> 84,663
<INCOME-TAX> 33,442
<INCOME-CONTINUING> 0
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 51,221
<EPS-BASIC> .54
<EPS-DILUTED> .45
</TABLE>