For the past few weeks I've had a refurb 13in/1.86Mhz/128gb/4gb Macbook Air. It is great. (I probably should blame/praise Scottsdale for finally tipping me over into the purchase! ) I won't go into all the good things about it because more computer-savvy folks than I have already spelled all that out... I "dock" the Air with a 24-inch Apple Cinema Display, and it all seems to work together wonderfully. No complaints there. I did notice, however, that when I was trying to view a full-screen HD program that I had downloaded through iTunes, the playback stuttered a lot. The problem went away when I made the picture smaller than full-screen (although it was still plenty large.) There's also no stuttering if I just watch the program on the MBA itself. Is this just a built-in limitation of the Air? If so, that's fine; it's not a dealbreaker for me since I don't plan to use it primarily for that purpose. But I also wanted to make sure this wasn't a sign of some kind of problem.