Oak Ridger S-4/A Registration of securities issued in business combination transactions (amended)

EXHIBIT 12.1

COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES

	2003	2002	2001	2000
		(as restated)
Earnings:
Income before taxes and minority interest	47,589	63,078	33,125	32,200
Add: Fixed charges	26,940	25,618	33,961	45,730
Total earnings	74,529	88,696	67,086	77,930
Fixed charges:
Interest expense, including amortization of deferred loan costs	26,088	25,056	33,424	45,230
Interest expense estimate within rental expense	852	562	537	500
Total fixed charges	26,940	25,618	33,961	45,730
Earnings / Fixed Charges	2.77	3.46	1.98	1.70

COMPUTATION OF RATIO OF PROFORMA EARNINGS TO FIXED CHARGES

	2003		2002
Pro forma earnings:
Income before taxes and minority interest	47,589		63,078
Add: Proforma fixed charges	32,491		32,009
Total pro forma earnings	80,080		95,087
Pro forma fixed charges
Interest expense, including amortization of deferred loan costs	26,088		25,056
Add: Increase in interest, including amortization of deferred loan costs on senior subordinated notes computed as if issued as of the beginning of the period Parent debt were repaid at beginning of period	31,639		31,447
Less: Interest expense, included amortization of deferred loan costs on Parent debt assuming repayment at beginning of period	(26,088	)	(25,056	)
Interest expense estimate within rental expense	852		562
Total proforma fixed charges	32,491		32,009
Pro forma Earnings / Fixed Charges	2.46		2.97