I recently upgraded my monitor to a 24" running at 1900/1200. My CPU is a Core2 DUO E6850. Mobo supports PCI-E 1.0 (no SLI), but I understand that the 2.0 cards are backwards compatible. Would it be worth it to upgrade my graphics card (8800GT) to something a little faster for the new COD game? If so, can anyone recommend a good bang for the buck card? Thanks in advance.