I have a MacBook Pro (Santa Rosa) with a 120GB hard drive. I would like to replace it myself with a 500GB drive. I know that in the desktop PC world certain BIOS and motherboards only support certain size drives. Is this true for Macs? I also read a comment by someone on another site stating his 500GB drive was a little thicker than the original drive in his MacBook Pro. Does this sound right? Does Apple have a list of "recommended hard drives" for the MacBook Pro?