Right now I have a HP XW4600 Workstation PC with Core 2 Quad Q9400 2.66 GHz, 6GB RAM (Planning to upgrade to 8GB by buying one more stick of 2GB), Asus R7 240 2GB Low Profile (Also planning to upgrade to 750 Ti or 1050) and Seagate Barracuda 3.5" 2TB HDD. I am thinking of replacing this 2TB HDD...