Go with the pro if you can afford it. I just bought my wife a 15" MBP and she LOVES it. She has had a macbook for the past year and last week we were in the Apple store and I said, lets get you a new computer. She flipped out and started crying and stuff, it was cool. (I was also able to swing a new iPod touch)! She does a lot of photo editing with her business and she said the pro really makes a difference.

T