I need a new processor and graphics card, please help.

Right now my rig looks like this.

Windows Vista Ultimate x64.

AMD Athlon 64 Processor 3500+, ~2.2GHz

4GB's of Ram.

DirectX 11 (if that matters).

NVIDIA GeForce 8500 GT

I want a new graphics card and at least a dual core processor. A quad would be nice.

My budget is about $250's.

I want to run games like RE5, Crysis, at Highest Settings. If not highest, pretty darn close.

Someone help me?

Might I add that on my current rig I used to have an AMD Athlon 64 x2 but I didn't have enough cooling fans to support it.

I now have more than enough fans but the old processor got burnt out.