Which gamepad to buy, in order to play the GameCube ?

[MusicNomad]

I personally use my Xbox360 controller for all emulators. its not necessary for ones like the snes but n64 etc that require joystick manipulation. I use this: http://www.newegg.com/Product/Product.aspx?Item=9SIA1PU0FK3078 and it works perfectly. a little bit of configuration is required to get it working but its cheap and worth it. (it currently says out of stock but that one is an after market item and you should probably be careful about buying aftermarket products. This specific one generally had good reviews).