On macdude's rec to change my mobo, I did some more looking around last night. I'm now thinking of this mobo and one of these video cards instead of what I listed above. Anyone have any feedback, advice?
MSI K8N Neo4-F Socket 939
NVIDIA nForce4-4X ATX AMD Motherboard
http://www.newegg.com/Product/Produc...82E16813130491
Leadtek PX6600LE 256MB Geforce 6600LE 256MB
128-bit DDR PCI Express x16 Video Card
http://www.newegg.com/Product/Produc...82E16814122231
GIGABYTE GV-NX66256DP Geforce 6600 256MB
128-bit DDR PCI Express x16 Video Card
http://www.newegg.com/Product/Produc...82E16814125184