opinion new build

Solution
You need a z97 board with two PCI lanes capable of running at x8/x8 for SLI.

You won't be SLIing that 908 for a long time though. As it is, one card is overkill for 1080p.
If you are not overclocking, why are you getting an overclocking CPU and motherboard. That's a waste.

I would change the PSU to a better quality unit. An XFX, Antec, Seasonic would be ideal. Not that the unit you picked is particularly bad, but there are better units for this high end of a build.
 


+1 for these thoughts. That is a top tier motherboard and an unlocked CPU. You can save quite a bit and improve other areas of the build if you get equivalent non-overclocking parts.