My current graphics card is an eVGA GeForce 6200. It is starting to give me some fits, so I am going to replace it. I need a good AGP card. I have been looking at the 6600GT and the 6800GS. Which of these do you guys like better? I can get the 6600GT for a lot less, and I have heard almost nothing but good reviews on it. On the other hand, as far as I can tell the 6800GS is a brand new model. Either way, how much of a performance boost will I get going to one of these cards vs. the 6200?