For the control panel I was thinking of something like this one (this is one someone else did) but I am open to varriations on the colors and graphics. However, mine is a 4-player with a spinner, trackball, 5th joystick with restrictors for 2, 4, and diagnal games (like Pac-Man, Q-Bert, etc), as well as 4 MAME buttons at the top. I can provide a pic of my panel as well.