Hey guys, I've already read this SLI vs AGP deal. Enough.. I chose PCI-E not just for SLI but for future upgradeability. The motherboard cost is nothing compared to an Intel P4EE setup would cost me a lot more.
Ok, as for 6600GT SLI vs 6800GT. I picked the 6600GT because it was the cheapest to do SLI, it has the ability to handle intensive FSAA at 1280x1024 my playing resolution. I want a single 6800GT since I believe there are instances where I found that the 6600GT SLI can handle more "graphic load" than a single 6800GT.
Say a battlefield full of gamers, that could easily drop my framerates down with AA/AF, but a SLI setup can sustain more load and keep the framerates stable. Some benchmarks just doesn't show this. I just want to point out that in real world play, the SLI can keep the framerate up when the graphic load gets heavy. This is the reason I dumped my old X800 Pro, it gets weaker as the load gets heavier.
As for money saved for AGP, the cost is really negliageable hardly true savings.
Remember, with dual video cards, I can re-use them at the end of its gaming life and put each 6600GT card into my wife and kid's PCs. With a single 6800GT, that can only go into one PC not two... 😉