I suggested the Air because that's plenty of machine for most people. Personally, I have the MB Pro and it's a great machine. I'm running all the Adobe apps all day, often as many as 10 RAM and processor hungry applications going and it flies.
I'd suggest that you max the RAM (Apple is usually very conservative in terms of how much memory a system will actually take. check http://www.crucial.com/
to see what it will actually take in the real world).
Have fun with your new toy!