Anyone here have a MacBook or MacBook Pro? I'm looking at replacing an older iBook with one of the white MacBooks, but was wondering how they compared with overheating problems? My old iBook G3 900 has been in the shop about 5 times for extended AppleCare work. I realize this is a "PowerBook" list, but didn't know if it was OK to discuss the MacBook & MacBook Pro or not, since they are replacing the iBook and PowerBook lines. Joe