Yes, it's the computer I got from Maverick. I think it's a Core2Duo with 2GB of RAM. I've stuffed it into a 3u rack case that slides into the back of the machine. I built the control panel using two XIN-MO dual USB controllers, IL translucent buttons from Paradise Arcade Shop, and leaf-switch joysticks from Groovy Game Gear. I'm trying to use Hyperspin for the front-end, but it's going to take a lot of adjustments to get it to work right. I may just wait for HS 2.0 to see if there are any improvements.
The buttons have 9v incandescent bulbs inserted into old Christmas light sockets. I thought they were 12v until I looked in my eBay history just now, so I have them connected to the 12v rail. They get very hot and burn out quickly. Perhaps I'll try moving them to the 5v rail.