Geezzz...... Sorry, truck_goes_vrom sometimes people just post some very stupid things that dont help anything.
First, your mobo will not be able to support a FX. Another thing, those processor are around 800$ USA Currency. I dont know how much money you have to spend, nor if you want to upgrade or a howl new system.
That video card you have is pretty old, along with that processor. Your main problem is the video card. Second is the processor. For gaming AMD64 are the best you can get your hands on.
I suggest a new system. I recommend a socket 939 mobo, with a AMD64 3200. Dont for get your AMD64 will have to be a socket 939 3200. Thats what i think, if you want a new system. I will go further.
Finished With TF.