That's a pretty nice mid-range build, I like it, It will max out Skyrim and Fallout and will get medium, sometimes high, on most newer games.
But you have to replace that power supply with something better, something like this:
http://www.newegg.com/Product/Product.aspx?Item=N82E16817207032&nm_mc=AFC-C8Junction&cm_mmc=AFC-C8Junction-_-na-_-na-_-na&cm_sp=&AID=10446076&PID=3938566&SID=
The CX series from Corsair is nice and cheap but it's quality is shoddy at best.