Report:
Got my .128 versions and Tekken 1 plays damn-near perfect, as far as I can tell. No noticeable tearing, gameplay is nice and smooth.
Virtua Fighter is better, but still seeing some polygon tearing and randomly appearing triangles, but very playable.
Oh my specs are WinXP home, P4 @3ghz, 2GB RAM, and a 256mb Radeon gfx card.
I may give the PSX emu a go ... some day.
Thanks for all the help folks
