Exhibit 12

Ratio of Earnings to Combined Fixed Charges and Preferred Stock Dividends



|                                                                                                                                                        |      |                          |        |                               |      |         |      |   |         |  |   |         |  |   |        |  |   |       
|------------------------------------------------------------------------------------------------------------------------------------------------------- | ---- | ------------------------ | ------ | ----------------------------- | ---- | ------- | ---- | - | ------- |  | - | ------- |  | - | ------ |  | - | ------
|(in thousands)                                                                                                                                          |      | Year Ended September 30, |        | Quarter EndedDecember 31,2007
|                                                                                                                                                        | 2003 |                          | 2004   |                               | 2005 |         | 2006 |   | 2007    | 
|Fixed Charges Computation                                                                                                                               |      |                          |        |                               |      |         |      |   |         |  |   |         |  |   |        |  |   |       
|Interest expensed and capitalized (1)                                                                                                                   |      | $                        | 12,060 |                               | $    | 13,857  |      | $ | 49,043  |  | $ | 35,119  |  | $ | 29,671 |  | $ | 6,114 
|Amortized premiums, discounts, and capitalized expenses related to indebtedness                                                                         |      |                          | 3,857  |                               |      | 6,031   |      |   | 10,634  |  |   | 2,843   |  |   | 5,318  |  |   | 666   
|Reasonable approximation of interest within rental expense                                                                                              |      |                          | 1,139  |                               |      | 1,462   |      |   | 2,433   |  |   | 3,092   |  |   | 3,440  |  |   | 860   
|                                                                                                                                                        |      |                          |        |                               |      |         |      |   |         |  |   |         |  |   |        |  |   |       
|Total Fixed Charges and Preferred Equity Dividends                                                                                                      |      | $                        | 17,056 |                               | $    | 21,350  |      | $ | 62,110  |  | $ | 41,054  |  | $ | 38,429 |  | $ | 7,640 
|                                                                                                                                                        |      |                          |        |                               |      |         |      |   |         |  |   |         |  |   |        |  |   |       
|Earnings Computation                                                                                                                                    |      |                          |        |                               |      |         |      |   |         |  |   |         |  |   |        |  |   |       
|Pre-tax income from continuing operations before adjustment for minority interests in consolidated subsidiaries or income or loss from equity
investees |      | $                        | 60,081 |                               | $    | 105,107 |      | $ | 163,808 |  | $ | 137,816 |  | $ | 59,236 |  | $ | 20,022
|Plus                                                                                                                                                    |      |                          |        |                               |      |         |      |   |         |  |   |         |  |   |        |  |   |       
|Fixed charges                                                                                                                                           |      |                          | 17,056 |                               |      | 21,350  |      |   | 62,110  |  |   | 41,054  |  |   | 38,429 |  |   | 7,640 
|Minus                                                                                                                                                   |      |                          |        |                               |      |         |      |   |         |  |   |         |  |   |        |  |   |       
|Interest capitalized                                                                                                                                    |      |                          | 230    |                               |      | 435     |      |   | 464     |  |   | 1,027   |  |   | 784    |  |   | 178   
|                                                                                                                                                        |      |                          |        |                               |      |         |      |   |         |  |   |         |  |   |        |  |   |       
|Total Earnings                                                                                                                                          |      | $                        | 76,907 |                               | $    | 126,022 |      | $ | 225,454 |  | $ | 177,843 |  | $ | 96,881 |  | $ | 27,484
|                                                                                                                                                        |      |                          |        |                               |      |         |      |   |         |  |   |         |  |   |        |  |   |       
|Ratio of Earnings to Combined Fixed Charges and Preferred Stock Dividends                                                                               |      |                          | 4.51   |                               |      | 5.90    |      |   | 3.63    |  |   | 4.33    |  |   | 2.52   |  |   | 3.60  



|(1) | Interest expense associated with unrecognized tax benefits is included in income tax expense, not with interest expense.
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