40 or 80 GB PS3? Compatibility of games on 80 GB?

sorry man, the 40gb ps3 will never play ps2 games, because sony removed both hardware and software to make it cheap, while the 80gb ps3 can still play ps2 games, but sony removed the hardware, which means that the 80gb ps3 can play ps2 games in software emulation. 80gb ps3 use software, which means that some ps2 games will have some problems, bugs, glitches, and other things, but also can upscale the graphic.