i have the "older" white macbook which has an XP partition on it too. i'm meaning to install SL today since i have it sitting next to me. but first i want to backup my entire computer including XP. how do i go about doing this? if the installation messes up my XP partition somehow im screwed since i got XP years ago from my education institution and i can't get another key. so i want to pretty much ghost my entire drive. any software for this?