Seen a lot of comments here on PS and LR needing cores, needing high end cards, needing neither (iMac), and all sort of combos thereof. So.. does anyone have good information on what exactly PS and LR use, and what parts of the nMP would be most important? Comparing the 4 core vs 6 core, and D300 vs D500? Might help some folks here to have accurate info to guide buying. (Myself I'm crunching large raw files -Nikon D800).