Another question about upgrading PC's. Keeping in mind my main goal is The Witcher 2, what looks to be a very high-performance game, will I need to buy two graphics cards? I know a lot of people use dual graphics cards, although researching it a bit, it seems to just help frame rates out a bit... I've never been too nitpicky.
I suppose I could also use the new graphics card in conjunction with my current 7900, but I don't know about compatibility and all that. All in all, I'd really like to spend less than $600 or so, video card, CPU and RAM, if at all possible.
On the same subject, I really want to play Planescape Torment. I hear it's very good.