Hi. I have a brand new Macbook Air. 128GB is a bit tight for someone with 52GB of media in his iTunes folder, but I couldn't spare $300 more for the 256GB and really don't like keeping my music on an external. I would, however, like to keep the few movies I have on an external. I'm already down to only 25GB free, so saving 5GB by moving those movies is certainly worth it. I really only need to have access to the movies to sync them to my iPad. I would prefer not to move the movies on and of the Air every time I want to sync but rather just leave them on the external. My guess is that the way to do this is to UNCHECK the "copy files to iTunes Media folder when adding to library" box in preferences when adding the movies, and then recheck it when I'm adding anything else. Will this work? Any other suggestions?