Got a question regarding Time machine and an external hard drive. I just got a 500GB external hard drive, and I was going to create 2 partitions, one for Time machine and the other just as a general drive. If i do this before I install Leopard, will I need to make another partition for Time machine? Basically I cant find out what format a time machine partition needs to be. Can TM use a partition that is any format, or does it need to be a specific one?