I'm getting ready to sell my PB G4 17, having recently bought a MacBook Pro. I want to be sure that *all* my private data is removed first, and I've done all the obvious things like trashing the Music, Movies and Documents folders, cleared the cookies etc. But I've noticed that Skype still logs into my account automatically, even though I tried trashing it and reinstalling it, so it's obviously stored my login data somewhere I don't know about, which means that there's probably other private data still hiding in there too. Is there any way to automatically restore the computer to its "virgin" state, or otherwise be sure that all private data, website logins etc has gone, but *without* having to reinstall OSX? I really don't want to go through the hassle of reinstalling the third-party apps if I can avoid it. Or is it possible to reinstall OSX without affecting all the other apps such as iLife etc?