I've been waiting two years for a retina iMac. I was so happy to see that it finally came. Now everyone is scaring me off with worries and complaints about the AMD being underpowered. I do not want to buy a brand new machine that will be underpowered. I am a photographer / filmmaker so the machine will be heavily used with Adobe apps. I know Adobe's support for AMD is spotty so acceleration might not work very well. I also know that OpenCL is kinda broken from what I've heard. Thoughts?