Over Xmas / New years I got hold of Coin Ops 5 and put all 60+GB of it over to the old modded xbox (classic).
Shed load of work gone into this one, it's a real cheap way of getting multiple emulators running on one system if you don't want a mame cabinet or can't house one., it ain't perfect for the perfectionists, but there's plenty there for most IMHO
These machines are not expensive now, soft modding is not too hard, many tutorials about. Had quite a few hours fun, forgot how much I liked RoadBlasters, and I have a new fave - Blades Of Steel (Arcade), I used to love this on the NES, don't remember this one in the UK arcades, we're not to big on ice hockey, but this was great fun.
Anyway, if you have an old xbox, the torrent is easily found.
If you're having trouble finding it, click here to complain
http://bayproxy.me/torrent/8952769/Happy new year.