EXHIBIT
12.1






Fiscal
      year ended December 31,Fixed charges:
                                    
                                    2008
                                    
                                    
                                    2007
                                    
                                    
                                    2006
                                    
                                    
                                    2005
                                    
                                    
                                    2004Interest
      expense
                                    
                                    $
                                    42,772
                                    
                                    
                                    $
                                    81,516
                                    
                                    
                                    $
                                    52,472
                                    
                                    
                                    $
                                    33,971
                                    
                                    
                                    $
                                    4,729Assumed
      intererst element in rent
                                    
                                    
                                    2,270
                                    
                                    
                                    
                                    2,542
                                    
                                    
                                    
                                    1,452
                                    
                                    
                                    
                                    1,314
                                    
                                    
                                    
                                    761Total fixed charges:
                                    
                                    
                                    45,042
                                    
                                    
                                    
                                    84,058
                                    
                                    
                                    
                                    53,924
                                    
                                    
                                    
                                    35,285
                                    
                                    
                                    
                                    5,490Preference
      security dividend
                                    
                                    
                                    -
                                    
                                    
                                    
                                    -
                                    
                                    
                                    
                                    -
                                    
                                    
                                    
                                    -
                                    
                                    
                                    
                                    6,775Total fixed charges and preference security dividends
                                    
                                    
                                    45,042
                                    
                                    
                                    
                                    84,058
                                    
                                    
                                    
                                    53,924
                                    
                                    
                                    
                                    35,285
                                    
                                    
                                    
                                    12,265Earnings:(Loss)
      income before income taxes
                                    
                                    
                                    (139,392
                                    )
                                    
                                    
                                    (33,864
                                    )
                                    
                                    
                                    207,197
                                    
                                    
                                    
                                    304,589
                                    
                                    
                                    
                                    173,444Fixed
      charges
                                    
                                    
                                    45,042
                                    
                                    
                                    
                                    84,058
                                    
                                    
                                    
                                    53,924
                                    
                                    
                                    
                                    35,285
                                    
                                    
                                    
                                    5,490Total
      earnings
                                    
                                    $
                                    (94,350
                                    )
                                    
                                    $
                                    50,194
                                    
                                    
                                    $
                                    261,121
                                    
                                    
                                    $
                                    339,874
                                    
                                    
                                    $
                                    178,934Ratio
      of earnings to fixed charges
                                    
                                    
                                    (2.09
                                    )X
                                    
                                    
                                    0.60
                                    X
                                    
                                    
                                    4.84
                                    X
                                    
                                    
                                    9.63
                                    X
                                    
                                    
                                    14.6
                                    X