Hello my dad recently bought a new computer and gave me his old one! Right now it has the nVidia 7800gs which is an AGP! I want to upgrade the whole computer but right now I just want a better graphics card and I want to stick with nVidia! So what is the best nVidia AGP graphics card to date? I see there is 8 and 9 series but as far as gaming, I need one that is better then the 7800gs! I am not computer smart so I have no idea how to compare them! Thank you!!