. But, in all honesty - to the op - if your going to get a GTS - may as well go SLi and grab two - get the 680i board - go for a later eVGA - they appear to have the least amount of problems - earlier models - its a trip to the zoo.
Getting two GTS and putting them in SLi is horriable advice just buy a gtx. Uses less power, makes less heat and uses less cash. There are very few times that 2 8800gts make more since than a 8800gtx