I need a new laptop for work, i work in education and am rather mobile going from class to class and my office quite frequently through the day. Besides the normal apps (mail, google apps etc) i will use photoshop and imovie on the new laptop, I am leaning towards the MBA because of the size and weight, but not sure it will work as well. Would an 2.2/4gb RAM/256gb SSD MBA work? Or should i go with an lower end rMBP (2.7/8gb RAM/128gb SSD? I dont think i can go much higher in price for a better rMBP thanks!