I'm really torn between the 13" MacBook Air and the Retina Pro. The main thing I have against the retina pro is the form factor. It's just too big for what I'm used to having. The main thing I have against the MBA is that, well, it's not retina display. I like the form factor, though I like the 11" MBA form factor even better, but the battery life was just not there. I really value mobility, but this will be my only computer also. I will be using it to do light photo processing, graphic design and coding. I'm also a casual PC gamer, and would like to be able to play Diablo 3 at a decent framerate. Can the Air handle Aperture or Lightroom pretty well? Thoughts on which one I should get?