8800 GTS in SLI will be beastly. So im assuming you are going to be gaming on High resolutions. If not, then get just one 8800GTS and step up to the new cards when they come out. single 8800GTS alone will rip trough any current and upcoming games with breeze on 22"/24" screens. so if u gonna game on 30"+ then go for the 8800 GTS in SLI.