I know i'm going to get a ps3, but i don't know if i should get the $500 one now or wait for the $600 80G. I'll buy the 60G now if the only difference is the 20G, but i also hear that the 80G will not have the ps2 chip for backwards compatibility and that it's taken care of through software emulation instead. Is that true? And will it matter on the quality of the ps2 games if it's played through a chip or through software?