you might wanna check out xCade in the meantime - you can play a few games with it (pacman, mspac, space invaders, donkey kong JR, etc).
for a definitive list, DL and run the winRommer tool (there's a list of all games + variations it supports within) Not very huge but portable MsPacman IS pretty damn cool.
You need the winRommer to convert your Mame roms to a different format this program uses - check out the readme. Basic stuff. Hopefully we'll see Mame proper one of these days, but it's gonna be awhile yet, seems to me..