I herd you liek your PS3 controller.
With that you can use it to play PC stuff. Also, you can map buttons to keys and mouse buttons and stuff. You can use both USB and Bluetooth (for bluetooth you'll need an EXTRA adapter though, it pretty much takes over 1 adaptor).
And, hey, you know those gamepad enabled games that only support the X360 gamepad? Haven't you thought "Fuck them", I want to use any other controller"?, with that program you can use your PS3 controller to emulate a X360 gamepad.