Well, for a little more ($339.98) u can get this:Phenom II X4 955
and Gigabyte 890FXA-UD5
the i5-650 is a dual core the Phenom X4 955 is a quad core and the Gigabyte mobo is a very good OC mobo.
ASUS is very good too, but is more expensive that Gigabyte. This G.Skill 1600
are much better with the same price but better speed and CL.