Filed Pursuant to Rule 424(b)(7)

Registration Number 333-145069

PROSPECTUS SUPPLEMENT NO. 1

(To Prospectus dated August 2, 2007)


$175,000,000 PRINCIPAL AMOUNT OF

3.75% CONVERTIBLE SENIOR NOTES DUE 2027

AND THE SHARES OF COMMON STOCK ISSUABLE UPON CONVERSION OF THE NOTES

This prospectus supplement supplements information contained in the prospectus dated August 2, 2007 covering resales by selling securityholders of our 3.75% Convertible Senior Notes due 2027 and common stock issuable upon conversion of the notes. This prospectus supplement is not complete without, and may not be delivered or utilized except in combination with, the prospectus, including any amendments or supplements thereto. This prospectus supplement is incorporated by reference into the prospectus and should be read in conjunction with the prospectus. The terms of the notes and the common stock are set forth in the prospectus.


INVESTMENT IN THE NOTES OR COMMON STOCK INVOLVES SIGNIFICANT RISKS. SEE ‘‘RISK FACTORS’’ BEGINNING ON PAGE 9 OF THE PROSPECTUS TO READ ABOUT RISKS THAT YOU SHOULD CONSIDER BEFORE BUYING THE NOTES OR COMMON STOCK.


NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES COMMISSION HAS APPROVED OR DISAPPROVED OF THESE SECURITIES, OR PASSED UPON THE ADEQUACY OR ACCURACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.

The date of this prospectus supplement is November 26, 2007

 

 



The section entitled “Selling Securityholders” in the prospectus is superceded in its entirety with the following:

SELLING SECURITYHOLDERS

We originally issued the notes in a private placement in May 2007 to Bear, Stearns & Co. Inc. and Banc of America Securities LLC, as representatives of the initial purchasers (the “Representatives”). The initial purchasers resold the notes to purchasers they reasonably believed to be “qualified institutional buyers” in transactions exempt from registration pursuant to Rule 144A under the Securities Act. The selling securityholders listed below and, to the extent permitted, their transferees, pledgees, donees, assignees, successors, partnership distributees and others who later hold any of the selling securityholders’ interests, to which we collectively refer as the selling securityholders, may from time to time offer and sell any and all of the notes and the shares of common stock issuable upon conversion of the notes pursuant to this prospectus or any applicable prospectus supplement. The Representatives have in the past and may in the future provide financial advisory and other services to us and our affiliates.

The following table and related footnotes show information received by us on or prior to November 26, 2007, with respect to the selling securityholders and the principal amounts of notes and our common stock issuable upon conversion of the notes beneficially owned that may be offered under this prospectus or any applicable prospectus supplement. We prepared this table based on the information supplied to us by or on behalf of the selling securityholders named in the table, and we have not sought to verify such information. Information concerning the selling securityholders may change from time to time and any changed information will be set forth in amendments or supplements to this prospectus or any applicable prospectus supplement if and when necessary.

The selling securityholders may offer all, some or none of the notes or common stock into which the notes are convertible. Thus, we cannot estimate the amount of the notes or the common stock that will be held by the selling securityholders upon consummation of any sales. The column showing ownership after completion of the offering assumes that the selling securityholders will sell all of the securities offered by this prospectus or any applicable prospectus supplement. Unless set forth below, none of the selling securityholders has held any position or office or had any material relationship with us or our affiliates within the past three years. All of the notes were “restricted securities” under the Securities Act prior to this registration. In addition, the selling securityholders identified below may have sold, transferred or otherwise disposed of all or a portion of their notes since the date on which they provided the information about their notes in transactions exempt from the registration requirements of the Securities Act.

 

Name (1)

 

Aggregate Principal Amount of Notes at Maturity that May be Sold

 

Shares of Common Stock Registered Hereby (2)

 

Shares of Common Stock Owned After Completion of this Offering

 

Acuity Master Fund

 

$

1,100,000

 

49,775

 

 

Alexandra Global Master Fund Ltd.

 

 

3,500,000

 

158,375

 

 

AQR Absolute Return Master Account, L.P.

 

 

7,500,000

 

339,375

 

 

Bayerische Hypo - und Vereinsbank AG

 

 

2,115,000

 

95,704

 

 

Bear, Stearns & Co. Inc.

 

 

18,507,000

 

837,442

 

 

CAS - HY

 

 

450,000

 

20,363

 

 

CBARB, a segregated account of Geode Capital Master Fund Ltd.

 

 

7,000,000

 

316,750

 

 

CNH CA Master Account, L.P.

 

 

10,000,000

 

452,500

 

 

Columbia Convertible Securities Fund

 

 

5,000,000

 

226,250

 

 

CSS, LLC

 

 

4,000,000

 

181,000

 

 

DBAG London

 

 

14,100,000

 

638,025

 

 

 

 

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Highbridge Convertible Arbitrage Master Fund L.P.

 

 

1,875,000

 

84,844

 

 

Highbridge International LLC

 

 

10,625,000

 

480,782

 

 

GCOF - HY

 

 

150,000

 

6,788

 

 

Investcorp Silverback Arbitrage Master Fund Limited

 

 

3,500,000

 

158,375

 

 

JMG Capital Partners, L.P.

 

 

3,000,000

 

135,750

 

 

JMG Triton Offshore Fund, Ltd.

 

 

2,000,000

 

90,500

 

 

KBC Convertibles MAC 28 Limited

 

 

1,000,000

 

45,250

 

 

KBC Diversified Fund, a segregated portfolio of KBC Aim Master Fund, SPC

 

 

2,000,000

 

90,500

 

 

KBC Financial Products USA Inc.

 

 

500,000

 

22,625

 

 

Linden Capital L.P.

 

 

12,000,000

 

543,000

 

 

Lyxor/Acuity Fund Ltd.

 

 

1,500,000

 

67,875

 

 

Nisswa Master Fund Ltd.

 

 

2,000,000

 

90,500

 

 

Peoples Benefit Life Insurance Company Teamsters

 

 

4,500,000

 

203,625

 

 

Pimco Convertible Fund

 

 

400,000

 

18,100

 

 

Polygon Global Opportunities Master Fund

 

 

10,000,000

 

452,500

 

 

Radcliffe SPC, Ltd.

 

 

9,500,000

 

429,875

 

 

Redbourn Partners Ltd.

 

 

7,500,000

 

339,375

 

 

Rhythm Fund, Ltd.

 

 

1,000,000

 

45,250

 

 

The Northwestern Mutual Life Insurance Company - General Account

 

 

5,000,000

 

226,250

 

 

The Northwestern Mutual Life Insurance Company - Group Annuity Separate Account

 

 

250,000

 

11,313

 

 

TQA Master Fund Ltd.

 

 

3,300,000

 

149,325

 

 

TQA Master Plus Fund Ltd.

 

 

1,200,000

 

54,300

 

 

Vicis Capital Master Fund

 

 

6,000,000

 

271,500

 

 

Zurich Institutional Benchmarks Master Fund Ltd.

 

 

700,000

 

31,675

 

 

______________

(1)

Information about the other selling securityholders may be set forth in future prospectus supplements, post-effective amendments, current reports on Form 8-K or quarterly reports on Form 10-Q, if required.

(2)

Assumes conversion of all of the holder’s notes at a conversion rate of 31.25 shares of common stock per $1,000 principal amount at maturity of the notes plus an additional 14 shares of common stock per $1,000 principal amount of notes. However, this conversion rate will be subject to adjustments, and the number of incremental shares issuable upon conversion will be subject to contingencies and adjustments, in each case as described under “Description of the Notes -- Conversion Rights” in the prospectus. As a result, the amount of common stock issuable upon conversion of the notes may increase or decrease in the future.

 

 

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