My review withdrawal systems are cured, thanks, Bryan
So for £400 a whole £150+ less than a 590/6990 you can get similar performance, not bad if you ask me. Sacrificing some AA in one game shouldn't really put you off and anyone with an AMD card can only have up to a maximum of 8x AA anyway.
If you have the money for a 590 that would ideally be the better option in the long run but if you are on a budget SLI MSI 560 TI's is a pretty damn good alternative.
Maybe, but don't forget that two 570's in SLI aren't listed in the bench results and there are many on the forums that speculate that they would be a better alternative to a 590. If your not looking for a single slot solution that is.
Yer the one problem with two mid ranged cards find myself not having enough shaders but personal gripe. Also Tom did give big thumbs up too sli gtx 570's not too long ago on a forum thread.