I've never actually seen or heard of evidence of good graphics on a PCI bus.
I would just build a new system, you can practice by tearing your current one to pieces, and sell the remains to some unsuspecting old pensioner, who just wants to send emails and chat to their grandkids.
Maybe you could even sucker someone into buying your PCI card.
Desperate times call for desperate measures, and if anyone asks, blame me!


Mainboard: Asus P5K-Premium, CPU=Intel E6850 @ x8x450fsb 3.6ghz, RAM: 4gb PC8500 Team Dark, Video: NV8800GT, HDD: 2x1Tb Samsung F3 RAID-0 + 1Tb F3, PSU: Antec 550 Basiq, OS: Win7x64, Display: 24&