Not sure how useful it will be but my site is:

www.roguesynapse.com

We just migrated servers and my webmaster just had his first child so a few parts of the site are down (Death Race and arcade pics)- Still, there is arcade art and software for mainly movie related arcade stuff and custom cabs (Starfighter, Space Paranoids, working on Bishop of Battle, and a few Easter eggs on the site hopefully soon)- All software is designed to run in a cab (MAME type interface)-

Otherwise, thanks for the excellent links above-

Doc