<ARTICLE> 5
<MULTIPLIER> 1,000

                             
<PERIOD-TYPE>                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-2000
<PERIOD-START>                             JAN-01-2000
<PERIOD-END>                               SEP-30-2000
<CASH>                                         248,158
<SECURITIES>                                       139
<RECEIVABLES>                                  184,145
<ALLOWANCES>                                     6,126
<INVENTORY>                                          0
<CURRENT-ASSETS>                               475,159
<PP&E>                                         126,070
<DEPRECIATION>                                  84,369
<TOTAL-ASSETS>                                 660,523
<CURRENT-LIABILITIES>                          147,662
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           976
<OTHER-SE>                                     505,523
<TOTAL-LIABILITY-AND-EQUITY>                   660,523
<SALES>                                        819,198
<TOTAL-REVENUES>                               819,198
<CGS>                                          628,278
<TOTAL-COSTS>                                  783,271
<OTHER-EXPENSES>                              (51,838)
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                  72
<INCOME-PRETAX>                                104,681
<INCOME-TAX>                                    41,349
<INCOME-CONTINUING>                                  0
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    63,332
<EPS-BASIC>                                        .66
<EPS-DILUTED>                                      .56