i agree with CMVS. Saves you tons of money. AES games have bleed me dry, and getting English versions even more so.
back to the topic, hit up neo-geo.com/forums theres a few on there, one with a mod that I know of. If you find a US system, it'll play all japanese games in English, and same vice versa. But if you're like me, you want to be able to read the manual in english.