The OP requested a 4770, so I gave him one. I'm not an idiot, I know that there isn't much gain over the 4670 in terms of gaming, I'm here to help him come up with a build, not forcefully tell him what he must build.
Whoa, where did I say I was forcefully telling someone what to buy? I'm just trying to explain the difference between what is practical and necessary for a good gaming experience, and what isn't. When you're buying a gaming rig, you don't need to spend money in places where you don't have to, and overpaying for a part is just plain ridiculous. It will not make a rig future proof, and you just don't need to spend money where you do not have to, that's all I'm trying to say. Ideally, having a dual GPU / triple monitor setup is the ultimate in gaming right now, anything less and I wouldn't recommend spending that kind of a budget on a rig.
As for 1866 RAM, intel's Haswell processors are specified to run up to 1866Mhz RAM so that is a non-issue. With 16GB you can run a RAMDISK and basically supercharge any game loading times you want to play (I know it's amazing on Skyrim).
Huh, now this I have not heard before. I definitely know what a RAM disk is and how to set one up but I've never seen that it's beneficial for a gaming experience. That makes a bit more sense. I would like to see some documentation about this if you have any links.
As for the MOBO, the heat isn't an issue unless you live in a very hot place with terrible circulation in your case.
I can't speak for everyone but I live in Southern California, in what is essentially a gigantic wind tunnel. :lol:
But where you live doesn't affect heat recirculating inside your PC, every component generates heat, and that is a fact. But what makes the Sabertooth a bad motherboard is that it recirculates heat that's already inside your PC. You want to set your air flow up in a way that it moves air in a constant circular motion with air escaping out the rear exhaust fan. Not trap it and recirculate it with no chance of escaping.