To put this gently... this is a horrible build.
First, an i7 offers no advantage at all over an i5 for gaming (with the exception of CPU turns in Civ 5).
Second, if you're not overclocking then there is no point at all to buying a "K" chip - the only thing the K does is allow overclocking.
Third, 32GB of ram is pointless for a gaming rig. Most games have a hard cap of 2G memory usage (32-bit executables that that don't use PAE). Add in a couple other large programs with Windows and you'll still be hard pressed to max out 8G. Even if you want to be paranoid 16G is more than enough.
Fourth, open box items on Newegg are a horrible gamble. They don't thoroughly test returns, so you're basically doing the testing for them. Plus, there's never a guarantee that it will have any accessories with it. Additionally, like the "K" series chip, the only thing Z77 offers over H77 is the ability to overclock.
Finally, the GTX680 is a really bad value. The GTX670 comes within 7% of the 680 on average, and costs $100 less. And the GTX670 will crush pretty much any game at 1900x1200 or below. Unless you're running 2560x1600, or multimonitor, the 670 is arguably overkill, and the 680 is without a doubt pants-on-head-silly to buy.
You could easily shave $300 off that build and have no perceptible difference in performance, which you could put in your pocket, or maybe even grab a nice 256G SSD (which is awesome for day-to-day tasks), or whatever.
You've got a classic case of overbuying for no real benefit.