No, don't go plain 6600. If anything go for the 6600gt. I think for the price they are a really decent card, although it seems ATI has been making some really good improvements. Just a word of thought, you will find a lot of Nvida fans, and you will find a lot of ATI fans. What I would concentrate on is the pipelines the video card offers, and then price. Me personally, I am an Nvidia fan, but I'm sure ATI makes some great cards as well.