I just returned my MacBook Pro Retina because I found it too big and clumsy to take with me. I also had a lot of trouble with IR and uniformity - and had a hard time designing for web (72 dpi) on the retina display. So now I'm looking for something more portable. I have settled on a MacBook Air with 8GB - but haven't decided to combine it with a Thunderbolt Display or a 21.5" iMac. I would actually prefer the MacBook Air + Thunderbolt but I am not sure whether it would be enough for my needs. How does the Intel HD 4000 compare with Ati HD 6570M? I will most of the time be using it for designing websites, icons, iOS apps, some light video/photo editing and maybe some print design (300dpi). I will not use it for heavy video editing and 3D - and I will only play a few games such as Football Manager and Minecraft (not important). What are you thoughts? And would you prefer the i7 over the i5 in the MacBook Air??