That psu is a no, its not even tier 4 or above, the ram I changed no reason to need 16gigs as your not using it for editing etc. Also put it to 1600mhz. Changed out the video card for a 4gb 960 over the 2gb for higher resolutions and games. Third since I was able to save some money I added and SSD for quick boot times.
http://pcpartpicker.com/p/qy2LMp