I don't have an Xbox360 but like the wireless gamepad. Can you recharge an Xbox360 wireless gamepad without the Xbox 360 console? I want to use it on my PC for driving games and tombraider style platforms.
I would urge against using the USB charger that plugs into the controller itself, I have ruined 2 controllers now due to overheating of the batteries when the charger is plugged in, the batteries heat up while charging and the heat seems to distort the left hand joystick causing it to stick and become erratic during play.
If going for a rechargeable battery get a recharger that charges the battery away from the controller, i.e. nicads or similar.