At some point in the last year?after Apple upped the iTunes Store?s default video resolution to 640x480?my iTunes library no longer fit comfortably on my laptop?s hard drive. By ?comfortably,? I mean that I could continue to store the library there, but my computer would become useless for anything but playing back music and movies. So I made a tough call: my library was going to move to a second hard drive, a G-Tech?