I have a complete Super Pac-Man to MAME conversion/restoration for sale in the Richmond, VA area. It has a brand new monitor, joystick, control panel overlay, light fixture, and t-molding installed. The computer inside runs off a CompactFlash card, and is fanless (other than the power supply), so the cabinet is practically silent. It can use a regular hard drive if you don't like the CompactFlash idea, if you prefer. It can be powered on and off using a handy remote control, too.
I would like to get $500 for it, which is probably a little less than what I put into it. Let me know if you're interested.
Here's a picture:
and a second one: