At the time of writing the following bundle is available at buy.com.

http://www.buy.com/retail/product.asp?sku=202105748&adid=17662

It's $629 ish, but has the following items:

• Xbox 360 System - Play games in High Definition (HD) with 720p/1080i output and full surround sound! Stream digital photos and music from your Windows XP or Windows Media Center Edition 2005 PC! Also features a built-in Ethernet port for connectivity to Xbox Live.
• Xbox 360 Hard Drive (20GB) (included with System) - Save games and music, plus download new Xbox Live content.
• Xbox 360 Wireless Controller (included with System) - Enjoy speed, accuracy, and freedom to roam with its 30 foot range.
• Xbox 360 Component HD AV Cable (included with System) - This connects gamers to the world of Xbox 360 games and graphics through high-definition and standard-definition connections.
• Xbox 360 Headset (included with System) - Trash-talk opponents or discuss strategies with your Xbox Live teammates.
• Additional Xbox 360 Wireless Controller - What fun is playing Xbox 360 alone? Challenge a friend or compete online against two of your buddies!
• Xbox 360 Memory Unit (64MB) - Save games, transfer Xbox Live accounts, rip CDs, and more.
• Amped 3 - Amped 3 brings you the snowboarding lifestyle with an all-new physics engine, an innovative artificial intelligence engine, and perfected controls!
• Tiger Woods PGA Tour '06 - Create a golfer using the most advanced Game Face technology ever released, and battle through five classic periods of golf with Tiger Woods and other legends like Jack Nicklaus and Arnold Palmer challenging you every step of the way.