My girlfriend will be buying a new Mac in the next couple of days, and she needs to make a decision between an ultimate 13" Air, or a 15" Pro (if she goes Pro, she will probably get the mid-range model with an upgraded screen and SSD too). She is an architecture major, and does a lot of Adobe CS work, as well as a significant amount of AutoCAD. Rhino and Maya will be new to her arsenal this year as well. The school's program focuses on mostly 2D work, but there will be a bit of 3D work this year (putting the Air's HD3000 into question). I was wondering if anyone had any experience using an Air for such tasks. My personal preference for her would be the 13" Air since it's much more portable, and she will be able to carry it around more easily. She will have school computers (Mac Pros) at her disposal, though she prefers to do most of her work on her own system. If an Air is acceptable for mostly 2D work, then she will be going for that, since it is also a little cheaper. But, if any of those tasks are just not acceptable on such a machine, she'll have no choice but to go Pro. Opinions?