masta_sushi what are you on? to start off with your case inc psu and fan is $18 how does that compare to the one listed above???
why have you included the cable modem cost?
anyway, I would get an MSI FX 5900 (I dont know any US prices) as thats the one I use an its great.
I would also get a couple of 512MB sticks of RAM as I have just found that games like Far Cry eat memory for breakfast.
Regarding the Intel vs AMD, if you can afford an Intel I would go that way (probably a Prescott 2.8) with a motherboard based on the 865 or 875 chipset.
Pentium 4 2.8 with M0 stepping.
Only air cooling tho