I'm about the pull the trigger on the new Mac Pro. I'm set on getting the 6 core and 32GB RAM but the only thing holding me up is deciding between the D500 or D700. I do HD video, mostly XDCAM and Prores in FCP/Motion and Adobe CS6 and will consider Resolve 11 when it's released. I'm not doing any 4K yet but would like to be solid for the next 3 years or so. Each card should handle 1080 HD without issue but will the D500 handle 4K formats well enough if I have to use them occasionally and would the D500 bog me down in any other way?