for all the other stuff like snes, genesis, nes, psx ... u might as well just get a caanoo (i set one up recently for my brother and was impressed that all of the emulators mentioned above run at FULL speed on the caanoo)....
(there's a guy called BAFELTON who has released an emulator pack which is all set up already.. u just copy it to your sd card of the caanoo, and then add roms. he updated it recently also which he mentions in his comments at the bottom of this link: