Ok, just got my new 80G Lacie-Porsche external HD. Its beautiful. Anyway, I am transferring my music on my iMac to it over USB 1. Its gonna take 7 hours Once it is on ther my goal is to delete it from the iMac and use that as the source for my music library on my iBook. Is that possible. If so how do I do it. Also are these drives reliable. Amazon said so and I was wondering if yall had an opinion! Holla back! Peace!