Re: SLI 260 worth it?
Yup, do it. Of all the cards in the 200 series, the 260's scale best in SLi. A good example is Crysis. A pair of 260's will just about keep up with a pair of 285's. I can play at 1920x1080 with highest settings (but no AA) and get 30-60+fps and is perfectly playable.