Here is a some what good pc http://www.newegg.com/Product/Product.aspx?Item=N82E16883220408 for the money, but what I don't like is the gpu so I want to know if I can add a 7770 http://www.newegg.com/Product/Product.aspx?Item=N82E16814127687 without any problems like the mobo won't support it or that there isn't enough power