hi, i posted this some time ago but didn't see any responses. does anyone have any easy/difficult is it to replace the internal HD in these new Core2Duo iMacs? And is the difficulty at all different between the 17", 20", and 24" models? i've cracked open Macs before to install RAM, but haven't (yet at least) attempted any major surgeries, and am wondering how feasible HD replacement is.
tx,
ox