just build you own much more fun and you get a better feeling when you power it on for the first time, you know what's gone in it and by god have you seen how much thermal compound they use on pre builds lmao ... the first thing I would be doing is removing the H/S and Fan and cleaning it up and replacing it.....
My Rig
24" Iiyama LCD Full HD 1920x1080
AMD Phenom II X4 955 Black-edition3.2,OC@ 3.8 GHz,
Asus Crosshair III Formula
4GB (2x2GB) Corsair Dominator DDR3, PC3-12800(1600)
x2 1TB Samsung Spinpoint
1GB XFX HD5770
650W Silverstone ST65ZF-GM PSU
Arctic Cooling Freezer 7 Pro v2
Lancool K58 Black Advanced Tower