Re: going SLI VS A whole new video card
The GeForce 6 series are outdated. Getting a single powerful card, will crush those two 6800GTs.
SLI is not worth it, unless you play on huge resolutions. Such as 1920 x 1200 or 2560 x 1600.
I'd say, sell your 6800GT, and get something like a 7900GS or X1950XT. Or save a little more, and get the 8800GTS. Which is the hot card for gaming, at the moment.
Or....the HD 2900PRO, that just released. It's a powerful card for the money.
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