Ps3 Hd Upgrade - Help?

[Roland1919]

Hey gang, I am preparing to upgrade my PS3 60G to 500GB but first I have a few questions/concerns. I've done a ton of research and have noticed, as one will when doing research, that there are varying opinions. So I want to get some "facts". Please offer fact that you know proven to be true. I want this upgrade to go right.

1. OK, first research I did was backing up my saved game data. Is it true that you only need to save the game's "saved data" and not the "game data" itself. My understanding is that you can fit all the save data on the thumb drive but saving everything would take a bit more room which essentially would not fit on a thumb drive. I understand that the rest of the material you can reload later like themes, PS HOME, game data, music, etc.

2. Some game save info will not transfer if you change PSN ID's. Is this true?

3. I've read opinions that you should not upgrade more than 2X the HD already installed. In other words if you have a 60GB PS3 than you should not upgrade to over 120 because of heating/noise issues? Is this true?

These are just a few questions I can think of. Installation seems simple but again I want to make sure that once I take the drive out and format a new one that it was done right. According to what I'm reading once you format and install a new HD that it you can never go back to the old one even for reference without reformatting it.

Thanks for any help.