I have thirteen functioning arcade games in my basement. Not completely OT since they all date from the 1980's and have at least one 8-bit microprocessor in each :) Anyway, try "RGVAC" as it is commonly known (rec.games.video.arcade.collecting). Lots of help there, many posts by regulars, etc. I even got a T-shirt with a RGVAC logo there :) -Charles