Also your site is for me "the temple of snaps" so if i could help for some MAME snaps, i would be really proud to help you.
I think also about making a "snap" project for non MAME Arcade emulators like Nebula, Kawaks, FBA, etc...Do you think it's possible to host on your site some of my works (of course if it's correct and you think it could be usefull).