*Neo voice "Upgrades"
now you may be like "Why?" on a lot of my choices
as for the i7, it has 2MB more L3 cache, he's got 2000 to spend on a gaming computer at single monitor 1080p why not, I would disable hyper threading for now making the individual cores stronger and cooler letting you OC more.
the Lightning edition 680 allows you to disable the voltage limiters, although since Nvidia bitched at MSI you may have to update the Bios to an older one to get that feature
since you can OC the Dickens out of the 680 you might as well water cool it, now I choose AIO coolers for the CPU and GPU because custom loops don't like being transported and you'll end up with a giant puddle in your rig
you'll only need 8GB of ram since most games don't even use 2GB of free ram, low timing 1866 should do fine
the motherboard has a plethera of features, like UASP USB 3.0 which is real USB 3, ASUS is the way to go when overclocking, I wouldn't go any other brand do to their rock solid reliability
I've used over 60 rosewill PSUs personally and recommended hundreds online, the one I recommend is a quality PSU, if you hear people say they aren't then they obviously bought a Cheapo PSU from them, you buy a Cheapo PSU, you get a Cheapo PSU, also the only thing from EVGA I'd buy is their GPUs, maybe their mobos but I've had nothing but bad experiences with the mobos and gennerally is best just to go with ASUS
this is recommended by a lot of Hardware review forums and is 80+ gold certified, Single rail and modular
Arc Midi is an excelent case, one of my favorite
Adata is a great company and make quality parts, this SSD is on par if not better than the hyperX3 that logan reviewed, STAY AWAY FROM OCZ PERIOD
HDD is a newer version of yours
the mouse has some pretty good feedback from logan
that key board is one of the BEST keyboard you can buy
Put the GPU rad on the Rear fan port if you can