oh dear, he really doesnt have a clue... 60hz+ screens, what is this guy smoking? Ive yet to find a display that is under 60hz...470sli is a solid setup and a gtx670 wont touch that stuff as we all know the 600 series is a horribly compute handicapped gpu, where as the 400 is good at computing and gaming (although at a high tdp ). The gtx470 sli setup will be pretty damn close to the 670 in most scenarios and the only real benefit is dropping a second card and also reducing power usage.
4ghz SB for skyrim? Strong troll... Skyrim is a terrible port and it will run on most systems, my setup is buttery smooth with a 2500k and gtx460 (at stock clocks when i was on skyrim) at 1080p, seems a silly guy this dirty larry. The only way i could agree with him was if we were talking about Arma 2, in that case you need i7 or 24 core opterons at 12Ghz and about 10 gtx680/7970s !. Performance on that game is dire, only game that makes my system crawl to a halt... even on ULTRA LOW!