Exhibit 12.1
COMPUTATION OF RATIO OF EARNINGS TO FIXED CHARGES
     The following table sets forth the ratio of earnings to fixed charges for the periods indicated.
                                                 
    Three months        
    ended     Years ended  
    March 31,     December 31,  
(Amounts in thousands, except ratios)   2009     2008     2007     2006     2005     2004  
(Loss) income before income taxes
  $ (2,527 )   $ (42,136 )   $ 33,442     $ 20,467     $ 2,371     $ (6,017 )
 
Fixed charges:
                                               
Total interest including amortization of debt discount and issue costs and amounts capitalized
    924       8,722       8,346       8,141       7,766       12,829  
Estimated interest within rent expense
    3,181       12,725       11,343       12,468       8,424       8,612  
 
                                   
Total fixed charges
  $ 4,105     $ 21,447     $ 19,689     $ 20,609     $ 16,190     $ 21,441  
 
                                   
Earnings (a)
  $ 1,546     $ (20,782 )   $ 53,315     $ 41,272     $ 18,512     $ 15,312  
 
                                   
Ratio of earnings to fixed charges (b)
                2.71       2.00       1.14        
 
                                   
 
(a)   For these ratios, “earnings” represents income (loss) before income taxes plus fixed charges and amortization of capitalized interest, less capitalized interest.
 
(b)   Due to losses during the three months ended March 31, 2009 and the years ended December 31, 2008 and 2004, the ratio of earnings to fixed charges for those periods was less than 1.0. The deficiency of earnings to total fixed charges was $2,559, $42,229 and $6,129, respectively, for those periods.