No, you do not need a gold rated PSU for SLIng. A TX750 V2 is plenty.
Correct me if I'm wrong but having a gold rated PSU simply means the same amount of wattage will be delivered but with less power loss. When I commented on my PSU I meant to say I need the 760W for SLI.
The gold rated is just a bonus to save cash on my electricity bill.
My local vendor offers the TX750 v2 for 35$ less but its not modular. It also offers the TX750M for 19$ less but its semi-modular and bronze. I personally think the 19$ is worth it.
Any other thoughts on my build would be appreciated.