some things to consider;
1) I don't think that an intel CPU is necessarily the best choice. Sure, it's MORE future proof because its more likely that intel will develop a new CPU that works better for gaming, HOWEVER an AMD cpu at the same price point will provide better performance now and perform at higher levels for longer. Sure a 3570k will be fine, for now, but it will soon be insufficient.
the i5 is a 4 core processor running around 3.9 GHz with a good overclock, a 6MB cache and a price tag around 230.00. (You might find it for less, but the same would be true of the alternative). By comparison the fx-9370 is 240.00, 8 cores, 4.4 GHz (before the overclock) with an 8MB cache. This is the most extreme AMD, and the most pricey, you could also try the 8350 which is rated higher, much cheaper, and just about as future proof.
Some interesting notes; The intel runs cooler by default meaning you can probably get away with a cheaper or even stock cooler (yes, even with the overclock you can stabilize on the stock cooler) and it draws less power. but that's about where the advantage to the intel stop. You could argue that AMD might be cutting its AM3+ processors, meaning in the future upgrades will require a new MoBo. However the intel is using 1155, which is a 2nd generation socket and has been replaced, for the most part, be 1150 or 2011 configurations. So upgradability will end up a wash. You also can reduce the price of the Mobo from 159.00 or whatever to around 80.00 with the AM3+ processor and an m5a97 MoBo.
2) now that we've saved you between 50.00 and 100.00 bucks between the CPU and MoBo by switching from a 2nd gen intel to a current gen AMD we can look at other areas to spend the money. The SSD is great. The HHD is fine, the Case is cool, maybe you could upgrade from it with some of the extra money, but I'm not convinced it'd be worth it, I don't see much tangible benefit of any case over the haf x. So that naturally leaves the GPU.
I'm not going to say there's much a reason to NOT get the EVGA 760 with the overclock and all that, because there isn't. I'm just saying that with 300-350 instead, you could do a 770. Honestly though the 760 is about the best value for a GPU on the market.
the problem right now is that we've hit kind a wall with mid range builds, you aren't going to get much more performance out of one mid-range component than another. You're going to be doing 1080p gaming at 60 FPS pretty much no matter what you tweak, it's just a matter of doing it for as little money as possible. I'm probably not as jaded as Bob is, but he's right. You've got an i5 or better, a GPU and an SSD? you're fine. You could do this build for 100.00 less with some tweaks, you could do it for 100.00 more with some tweaks and everything is going to run about the same. My honest advice would be to try to hold off until prices start to shake up in the summer if you can (unless you're just using a netbook or something) and see if any high end components drop in price.