I don't own a Mac Pro, or I wouldn't even ponder not purchasing the Macbook Air...it would be a no brainer. I have access to it only in my graphics class.MY OPINION: BUY MBA
Since you already have Mac Pro, keep your Mac Pro and buy MacBook Air, so you'll be doing most of graphics work on Mac Pro. MBA is lower-end in specs than MBP even if you spend more bucks so if you are concerned about lack of GeForce/higher-resolution on the go, just buy MBP. Otherwise buy MBA.
Not that you bothered to notice, but I've stated multiple times my explanations for my lack of interest in the Macbook. The bigger eye-opener for me is that I could get a MBP and an external display, plus other accessories, for less than the higher end MBA setup.Yeah but for the same price you could get a fully loaded Macbook and an external Display. (ie. 4GB 7200RPM).