This is great. I bought a 5.25" enclosure for my hard drive and DVDRW. Now I can backup my Mac HD to my external HD and then swap the HD with my DVDRW and burn dvd's. I can also unhook it and hook it up to my pc and use the HD and the DVDRW with that. The enclosure was only $46 shipped and I already had the 80 gig HD and DVDRW. Do any of you use a similar setup?