<ARTICLE> 5 <MULTIPLIER> 1,000 <PERIOD-TYPE> 9-MOS <FISCAL-YEAR-END> DEC-31-1999 <PERIOD-START> JAN-01-1999 <PERIOD-END> SEP-30-1999 <CASH> 7,394 <SECURITIES> 18,773 <RECEIVABLES> 13,242 <ALLOWANCES> (741) <INVENTORY> 0 <CURRENT-ASSETS> 42,021 <PP&E> 40,851 <DEPRECIATION> (17,522) <TOTAL-ASSETS> 103,150 <CURRENT-LIABILITIES> 7,194 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 1,909 <OTHER-SE> 73,639 <TOTAL-LIABILITY-AND-EQUITY> 103,150 <SALES> 52,528 <TOTAL-REVENUES> 57,209 <CGS> 22,956 <TOTAL-COSTS> 22,956 <OTHER-EXPENSES> 27,790 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> (1,322) <INCOME-PRETAX> 7,785 <INCOME-TAX> 2,647 <INCOME-CONTINUING> 5,138 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 5,138 <EPS-BASIC> .27 <EPS-DILUTED> .26