i want to build a gaming pc, here is the build i have chosen http://pcpartpicker.com/p/3Fu8E. please evaluate the build and tell me how i can improve it in any way. im trying to stay below the 1k line, but if theres any suggestions on how the efficiency of the build can be improved please say so. i dont mind indulging in a little extra money for a certain part if it means a notable difference. thanks.