<ARTICLE> 5
<CURRENCY> U.S. DOLLARS

                                                  
<PERIOD-TYPE>                   6-MOS                   6-MOS
<FISCAL-YEAR-END>                          SEP-30-2000             SEP-30-1999
<PERIOD-START>                             OCT-01-1999             OCT-01-1998
<PERIOD-END>                               MAR-31-2000             MAR-31-1999
<EXCHANGE-RATE>                                      1                       1
<CASH>                                          46,511                  24,657
<SECURITIES>                                    26,541                  69,194
<RECEIVABLES>                                   89,424                  64,220
<ALLOWANCES>                                         0                       0
<INVENTORY>                                          0                       0
<CURRENT-ASSETS>                               186,708                 175,834
<PP&E>                                          23,411                  18,730
<DEPRECIATION>                                 (7,793)                 (5,729)
<TOTAL-ASSETS>                                 244,205                 195,660
<CURRENT-LIABILITIES>                           46,133                  35,840
<BONDS>                                              0                       0
<PREFERRED-MANDATORY>                                0                       0
<PREFERRED>                                          0                       0
<COMMON>                                       132,013                 129,804
<OTHER-SE>                                      61,203                  29,562
<TOTAL-LIABILITY-AND-EQUITY>                   244,205                 195,660
<SALES>                                        183,184                 148,636
<TOTAL-REVENUES>                               183,184                 148,636
<CGS>                                          126,334                 105,127
<TOTAL-COSTS>                                  126,334                 105,127
<OTHER-EXPENSES>                                30,707                  24,163
<LOSS-PROVISION>                                     0                       0
<INTEREST-EXPENSE>                                   0                       0
<INCOME-PRETAX>                                 27,647                  20,621
<INCOME-TAX>                                    11,421                   8,353
<INCOME-CONTINUING>                             16,226                  12,268
<DISCONTINUED>                                       0                       0
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                                    16,226                  12,268
<EPS-BASIC>                                        .77                     .61
<EPS-DILUTED>                                      .76                     .60