I can no longer store my iTunes music library on my Mac's HDD as it's close to taking over the entire drive so... I bought a NewerTech 500GB External HDD (this is one of those drives that matches the Mac Mini's footprint). So, what's the easiest way to do this? I'm figuring you simply drag the music folder over to the ext. HDD, delete the existing folder on the Mac's hard drive (if it copies it vs. actually moves it), then change the source folder in "advanced" options. Is that how it's done?