Grab a PlayStation 3 Wireless Controller (aka Sixaxis), for $39.99 (Save $10) over at Buy.com.
New Google Checkout customers get an additional $10 off, making it a steal at $29.99.
Check it out: PlayStation 3 Wireless Controller 
Product Features
- Controls feature two thumbsticks, D-pad and six buttons
- Connects via bluetooth (wireless) or USB (wired)
- Lithium Ion rechargeable battery pack built-in
- Battery running time - Around 30 hours
- Play & Charge technology - Recharge battery pack when connecting via USB