I'm currently thinking about upgrading my macbook to Leopard under certain conditions. I was wondering if I can create a separate partition on this kind of hard drive http://tinyurl.com/6s7nq6 for OSX and my regular applications (clean install). Then have another partition for large video files, music, games, photos etc. Essentially, I want to keep a clean version OSX on one partition (with all painstakingly long install software on it i.e. Office and Adobe CS4 and all the little ones as well, addium, firefox, quicksilver etc) Can the hard drive mentioned be partitioned? And will Time Machine write on only one partition?