Hey guys, I'm about to pull the trigger on the 27" iMac and budget is of concern. I'm going to be using it for graphic design and video editing: mainly photoshop (utilizing the 3D features), after effects, fcp7, and maybe premiere. I'm pretty sold on the 1TB Fusion drive over the pure 256 SSD, but I can't decide between the i7 or 780M. If you could get ONE in my situation, which would it be and why? Thanks!