SEUSITES

My sony vaio VGC-RC310G currently uses a NVIDIA GeForce 7600GT (256MB) and I am looking to upgrade it. My budget is around $300 but I might go a little higher. I also heard that running two lower grade graphics cards gets better fps than a single higher grade graphics card for the same price. What are your suggestions?

Whats the difference between general desktop graphics and 3D gaming graphics?

On my new PC, the sub score for the vista aero glass interface isnt to good but the 3D graphics rating is ok, so im just wondering what is the difference, and if possible how to improve the general desktop graphics.