I am thinking of purchasing some hardware to boost my Mac Pro 5.1 (flashed) performance. Just wanted to get some suggestions on what would be a sensible buy if I had $500 to spend. CPU Upgrade my X5670 hexacore to X5680 hexacore? RAM Upgrade my triple channel 24GB to triple channel 48GB? Upgrade my triple channel 24GB to 32GB? Video Upgrade my unflashed GTX660Ti to unflashed GTX970/980? Upgrade my unflashed GTX660Ti to OSX compatible Sapphire AMD 7950? I'm doing ok on storage and plenty happy with the 700MBs I am getting with my msata RAID 0 setup. Thanks all!