Well, how does this sound:

• AMD Athlon 64 X2 5200+
• G.SKILL 2GB 240-Pin DDR2 SDRAM DDR2 800 (PC2 6400)
• GIGABYTE GA-M55SLI-S4 Socket AM2 NVIDIA nForce4 SLI
• with either an EVGA 8800GTS with 640MB or 320MB of ram

I can use my existing case (old Gateway case) and power supply (400 watts I believe) along with my huge, faithful 16GB hard drive. So the total would be $740 for the 640MB card or $650 for the 320MB card. Of course I could always buy 2 of these cards and run them SLI for around the same price as the 640MB card. I'm not really sure what would be best for gaming. The GPU's are probably excellent, its just the ram that I'm worried about. And dual monitors are definitely in this systems future. Oh yea, and is there any advantage over getting a 2GB stick of memory instead of 2 x 1024MB stick of memory other than future proofing?

Thanks for the help guys, I'm mentally retarded and hopeless when it comes to hardware upgrades.