[quote name='Brimah']Have you ever done this? Because you can... I did a full backup of my 80 gig HDD to a portable hardrive (so need one at least as large as the current PS3 harddrive) though the option on the PS3 menus. Did that, took out the 80 gig, put in a 500 gig, did a restore from the portable harddrive, and was like I never did anything. All accounts, games, data, everything was there.[/QUOTE]
I did the same from a 40 gb to 500 gb. I'm guessing accounts are linked to the PS3 itself and not the HD itself.