The place I mentioned get Street Fighter 2 cabs in quite often and sells them for under $200 a pop fully working with a good monitor. Perhaps I'll have to delve into it some more and get a nice MAME cab built. Got a good older XP PC that should work well for the project. If not, can't go wrong with some SF2 goodness.
Gogan, he has an occasional good deal to be had, but much of his stuff can be a little overpriced. Couple that with trying to get in there when someone is around. I've gone in several time over the past year during normal business hours and the place was closed. Rarely answer the phone either. Been there once during a return from picking up a haul. Came in with a box truck full of cabs. I think they said they had about 30 on the truck and it was a normal run for them. Love to know where they find them all.