I've been debating upgrading my storage to 768GB since I am out of room for movies and TV shows, but this isn't a pressing need at the moment, so I am going to wait before the next refresh to see if I will get an iMac as a base station for all of my iTunes ect. That being said, is there anyway to split your "iTunes Media" folder so my 17 GB of music are always on the internal SSD and the 400GB of movies and TV Shows are on my external HD?