[Potenz]

Paulo, SLI work in two different way, you have normal sli that will enhance 2 video card getting up to 80% more performance, but this way you need 2 cards of the same model, and you have 3SLI this way allows you to use 2 cards of the same and 1 of a diferent model, in this way you can also use the cards you have now, the biggest one wil be the main card and the 8800 will used in tings like phyxs and things like that, for that ensure that you mobo is ready for 3SLI.