I also have the WD 2 Terabyte external drive just bought it a few weeks ago.
Still learning how to use it. The goddam manual is 55 pages long. Anyways obviously Zappa has disappeared from my main drive and I unplugged the drive until I figure out what to do with Zappa's family trust or PayArtist

i threw out my manual. just drag and drop everything, dude. it's a lot easier.

The backing up is automatic. What I would like to do is be able to store all my music on the external then clear it out of my hard drive then just go and pick out what I want to hear for the day from the external.