I have an iMac (which keeps my photos and music), a 500gig external drive (which keeps my movies) and a 1TB external drive (which backs up the aforementioned internal/external drive). The movie 500gig drive is running out of space. Itunes is pointed to this drive for movies. I am looking for advice on how to transition to a new drive without duplicating much work. Is it as simple as buying a new 1TB drive, copying movies from 500gig to new drive and then merely deleting movies in Itunes and re-importing them from the new drive? Anything else to consider? Time Capsule? I stream all my movies via Cat 5 ethernet. Thanks.