so heres the scenario, i have a mac mini late 2012 base model with 8GB ram connected to 24 inch DELL. so in terms of size of a screen i got it covered. deciding where i should get 13" 2.4/8GB/256GB or 15" 2.0/8GB/256GB i will mostly use it for music producing software like ableton live, reason. Maybe some CS software like PS, ID, and lightroom. i know both will handle just fine those software because i have them on my mini. i know the i7 is better than i5. but i dont want to have an 15" i7 if 13" i5 can perform really well on those tasks so which one is the better choice ?