<ARTICLE> 5 <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> DEC-31-1998 <PERIOD-END> MAR-31-1998 <CASH> 19,664,072 <SECURITIES> 0 <RECEIVABLES> 42,935,614 <ALLOWANCES> 3,822,000 <INVENTORY> 7,516,060 <CURRENT-ASSETS> 69,711,900 <PP&E> 20,115,300 <DEPRECIATION> 14,707,501 <TOTAL-ASSETS> 89,022,095 <CURRENT-LIABILITIES> 11,074,095 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 74,578 <OTHER-SE> 74,925,296 <TOTAL-LIABILITY-AND-EQUITY> 89,022,095 <SALES> 0 <TOTAL-REVENUES> 47,767,127 <CGS> 40,596,844 <TOTAL-COSTS> 44,545,992 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 0 <INCOME-PRETAX> 3,559,246 <INCOME-TAX> 1,459,000 <INCOME-CONTINUING> 2,100,246 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 2,100,246 <EPS-PRIMARY> .28 <EPS-DILUTED> .28