Interesting. I am just getting back into the scene and I went out and bought a pre-built system for many different reasons. I then discover I can do the SLI thing and find out the cards are relatively cheap, but I figured since they are out of production, I still won't be able to keep up with the latest and greatest cards and game. Seems I unknowingly made a good move on adding the second. Right now I am only playing games in he Half Life orange box, but I have no SLI visual issues whatsoever.