For owners with external HD's do you keep your iTunes music on the external? I have a mini C2D 2.0 and will be using an external HD to house my DVD collection with aliases in my ~/Movies folder so they can be accessed via Front Row. Are you able to do the same with the iTunes library or does it have to stay local? If you can do this what is the best way to go about it? Movies are easier because I dont have nearly as many movies as I do music.