I was playing some MAME this morning, and thought about how it would be interesting to try and build an arcade controller to use with it. I've seen the HotRod joystics advertised, but the prospect isn't $300 cool (maybe 50 bucks, but not 300). What I was thinking though, is to order the parts (buttons, joystick) from Happ controls, get a generic cheap USB gamepad, rip it apart, and wire the contacts to the new buttons. Since the gamepad is a simple digital switch anyway, I'd just be wiring the new controls to the inputs that the old controls used, and by using an existing USB controller I should be able to use the same driver-right? Has anyone tried anything like this, or can they think of any reason that it wouldn't work?