What, if anything, is important to keep (besides the obvious of my personal folders) before I send my MBP off to Apple Land to be fixed, and most likely erased? My HDD is failing, and SuperDuper won't back it up. Carbon Copy Cloner did, but gave me a whooooole bunch of errors. Are there files that I should keep? Keychains? is there a Firefox preferance file that keeps all my bookmarks, passwords, etc? Thanks!