Exhibit 12.1

Computation of Ratio of Earnings to Fixed Charges



|                                                             |  |                         |        |      |   |        |  |      |        |      |   |        |  |   |        |  
|------------------------------------------------------------ |  | ----------------------- | ------ | ---- | - | ------ |  | ---- | ------ | ---- | - | ------ |  | - | ------ | -
|                                                             |  | Year ended December 31, |       
|                                                             |  | 2001                    |        | 2002 |   | 2003   |  | 2004 |        | 2005 |  
|Income (loss) from continuing operations before income taxes |  | $                       | 60,372 |      | $ | 22,811 |  | $    | 41,328 |      | $ | 24,228 |  | $ | (3,244 | )
|                                                             |  |                         |        |      |  
|Fixed Charges:                                               |  |                         |        |      |   |        |  |      |        |      |   |        |  |   |        |  
|Interest expense (including capitalized interest)            |  |                         | 1,229  |      |   | 22     |  |      | 2,886  |      |   | 5,632  |  |   | 5,010  |  
|Interest relating to rental expense (1)                      |  |                         | 3,644  |      |   | 2,853  |  |      | 2,141  |      |   | 2,584  |  |   | 4,079  |  
|                                                             |  |                         |        |      |   |        |  |      |        |      |   |        |  |   |        |  
|Total fixed charges                                          |  |                         | 4,873  |      |   | 2,875  |  |      | 5,027  |      |   | 8,216  |  |   | 9,089  |  
|                                                             |  |                         |        |      |   |        |  |      |        |      |   |        |  |   |        |  
|Earnings available for fixed charges                         |  | $                       | 65,245 |      | $ | 25,686 |  | $    | 46,355 |      | $ | 32,444 |  | $ | 5,845  |  
|                                                             |  |                         |        |      |   |        |  |      |        |      |   |        |  |   |        |  
|Ratio of earnings to fixed charges                           |  |                         | 13.39  |      |   | 8.93   |  |      | 9.22   |      |   | 3.95   |  |   | 0.64   |  
|                                                             |  |                         |        |      |   |        |  |      |        |      |   |        |  |   |        |  



|(1) | The representative interest portion of rental expense was deemed to be one- third of all rental expense, except for the rental expense related to the off-balance sheet financing
leases, as described in the footnotes to the financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2005 which was deemed to be all interest.
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