#1
1. Get a product similar to this: http://www.ebay.co.uk/itm/Black-USB-2-0-GAMEPAD-GAME-PAD-CONTROLLER-JOYPAD-/360362120187?pt=UK_Computing_ComputerComponents_JoysticksJoypadsGamepads&hash=item53e74193fb=
2. Use this software to program the main commands: http://xpadder.com/
3. Rock!

I used this kind of setup when I recorded my vocals some time ago. There's a half-assed explanation on how the system works around 3:00 in this video:

http://www.youtube.com/watch?v=5KWeZNfikQU