I've finally got around to buying a 250GB External LaCie HD d2 and setting it up just now!!! For now I have just copied over (using Finder) my entire "Documents" ,"Music" , "Pictures", 'Movies' folder to LaCie. I'm sure I need to back up some preferences and other essential, crucial stuff that I need if my iBook dies (God forbid!!).. Any advice on what else I need to be backing up is much appreciated. Also, do I need to use the SilverKeeper backup software that comes with the HD or is copying via Finder just as good? Thanks!!