I'm looking for a small external display for my MacBook Air. By "small" I mean 15 or 17 inches. Do such things even exist any more? I'm trying to fit my office into a very small space. It would be great to have a 24 or 27 inch display, but there's just not room for that. I was considering replacing my 11-inch MBA with a 15-inch MB Pro, but I'd really rather not do that. I love the Air. Then I realized, "Hey, I could just add a 15-inch external display." The problem is that I've been having a hard time finding one that looks reliably high quality. Anyone have anything they could recommend?