Amazon has the DualShock 3 Wireless Controller for $38 with free shipping.
Product Features
Color: Black
* Pressure sensors that rumble with each action making every impact feel like you're right in the game
* Sixaxis highly sensitive motion technology senses your every move
* Features Bluetooth technology for wireless game play
* The PlayStation 3 system can support up to seven wireless controllers at one time
* Can be charged at any time through the PlayStation 3 system using the controller's USB cable
Amazon.com: PlayStation 3 Dualshock 3 Wireless Controller: Video Games
DualShock 3 Wireless Controller For PS3 $38 + FS 
