Pretty much the same setup but with improved 1TB SSD (bought it when it was on sale for $360) and 16GB RAM. The 1TB SSD is simply beautiful.
CPU overclocked to 4.4 GHz (very low but stable and safe).
OS is Windows 7 Pro 64bits (bought it off eBay for $90).
Haven't been building rigs since 2006, and was having quite a struggle with cable management for some time. And kept placing SSD in the wrong direction on the bracket for FOUR TIMES.
Overall, it was a good experience. Everyone should be starting (and coming back) building their own rigs. It is almost always better than brand pre-built PC. (Better motherboard, power supply, GPU and more)
Good luck and thank you for viewing!