Yeah, and software, don't forget the software. If you pay for it that is *cough* Except you can boot into Win with Bootcamp, or VM it with Parallels. RAM and HDs at least are transferable, most pro and semi pro audio cards, and some video cards (with a ROM flash). Finding a spanking new Mac with less of the above than you already have could be a challenge. I really should get that cough seen to