Hello, I am looking to purchase a new Macbook Pro in the near future and would like some advice on performance vs. price. My design needs are as follows: Photoshop, Illustrator, light Maya, Mudbox, and Zbrush work. Gaming is not critical, but I would like a decent enough machine to handle things like Borderlands 2 (Unreal engine) and the like. Will the Iris, and Iris Pro cards handle that? Or would I need to get the 15" pro with the integrated and dedicated NVidia card? Any advice would be helpful, thanks!