Hello folks, I read a few threads here at cnczone and on the mach3 forums about using a xBox 360 controller, and I decided to give it a try. It was really easy to install...get the plug in from the mach site.
They also have the driver, Xbox360_32Eng.exe, but, since I'm using windows 7, I had to download a newer version. Which is done kinda of automatically through win 7 when you try to install the Mach3 site's driver.
Another plus is that you can still use all your keyboard's functions as though the controller wasn't even there.
here's a video...
Mikini Xbox 360 - YouTube