Well... I use the following emulators on GameEx and they work seamlessly. AdvanceMAME, MAME32, Zinc, Model 2 - Mostly working (aside from some Model 2 problems) 1964 - n64 ZSNES - SNES NEStopia - NES VisualBoyAdvance - GBA, GB Color, GB Mono KEGA - Genesis, Master System, Game Gear, Sega CD, 32X MagicEngine - Turbo Grafx 16 CD & PC Engine Neo Rage - Neo Geo Console NeoPop - Neo Geo Pocket Bliss - Intellivision Handy - Lynx MESS - Atari 7800, 5200, TRS 80, Apple IIe, Colecovision Stella - Atari 2600 Virtual Jaguar - Atari Jaguar I keep my ROMS seperate, so really I just set up each emulator to run each system (eg Sega Genesis, Master System, GBC, GB Mono, etc.) If you're having problems with any of these emulators I'd be more than happy to help you configure them. Really nothing to it once you get going. The real secret is really in the command line and it takes some digging and alot of trial and error to get it running just right, but it's worth it. Hope that helps!