Today I proudly release my input plugin for Dolphin.
(Dolphin is a GC emulator see www.dolphin-emu.com for more info).
The plugin uses SDL so you will need to download SDL and put it in the root folder of Dolphin. (http://www.libsdl.org/).

Currently only controller one is supported, others are internally disabled by Dolphin so I decided not to enable them in nJoy either.
This plugin supports joypads/joysticks only. If you prefer the keyboard, just use the default plugin instead .