Amazon.com is offering the Xbox 360 Play and Charge kit for $11.99 as their deal of the day. The Xbox 360 Play and Charge kit includes a rechargeable battery pack and a cable that allows you to connect your wireless controller to the system so that you can continue playing while the battery pack is being charged (charger sold separately). The usual price is $19.99 and the rechargeable battery pack alone sells for $11.99 so this is a good deal for those with the 360.

Xbox 360 Play and Charge kit - $11.99