This is more of a theoretical question. If an arcade/amusement company like Sega decided to use the Mac Mini or Mac Pro as their next arcade board, would it be possible? Is it possible to attach custom arcade peripherals (like driving wheels or dance pads) to it? Could it be configured to check for peripherals upon startup? I started thinking the other day, "What if a Mac Pro was powering this game - http://www.youtube.com/watch?v=uaZG4CEhXdA ?"