Yeah a 1000W PSU would be fine, it's just it would be a waste of money. 850W would be fine for SLI'ing two 670s or 680s I reckon.
I'd just go for two 670s or 680s now if you want to SLI. No point really waiting, there's gonna be another year or maybe longer until the 7xx series gets released.
I'd just go for two 670s or 680s now if you want to SLI. No point really waiting, there's gonna be another year or maybe longer until the 7xx series gets released.