ok, I got the external hd enclosure today and just got back from bestbuy with an 80 gig seagate ata drive. I want the external just to be a backup/ more space not as the master. How do i do the jumpers, and anyone have any thoughts on it. What i plan on doing is backing up all my docs and photos and vids then formatCing and reinstalling XP so hopefully PS works. Also, should I set the external to be the scratch disk in PS 7 if I can get it to work.