From the 3 games, I get the highest fps in Half life 2. I was surprised aswell. I was thinking that this would be the time to upgrade to a new videocard, I was wrong.

@dmacfour: videocard does make a big difference and yours is better than mine, however, your cpu and ram are a bit low so I dont know how it will do. My advise is wait for a demo (dont know if there's going to be any) or download the game and see if it works. If it does work, buy it.