I currently have second hand Gravis PC GamePad connected to my Pegasos, it does work, but isn't really the best pad, I've used...

I've thoguht a bit about opening it up, and using the electronics in better controller... I have one arcade stick, but for that I'd need to build (big) case, and I'd need to hunt down quite some arcade buttons aswell...

Another possibility, that I've thought a bit, putting it in Playstation controller, those aren't that bad really...

I wonder, if it'd be easy to get analog controller(s) wired aswell? (Well, guess they're not really supported on current MOS but still...)