Ehh I wouldn't pick the K edition processor if you are using a motherboard that doesn't support overclocking. You can get thr Z77 chipset version for around $20 more i think. For the storage I would go Seagate there cheaper and despite what people will tell you WD has the same failure rate as a Seagate drive.
Another thing, I would drop the expensive keyboard as you can get a cheap one now and just replace it later on. Put the money toward the mobo.
I have a very similar build( Except mobo, gpu and monitor every other thing is the same). This is do very well for moderate gaing. And no problem in using H77 for k series if you cannot afford it. You could get z77 later. Bottom line : This will do away if you are for all the games you mentioned (in b/n moderate and higher graphics). I have only 7770 2 gig and I can tell you I run all these in 60 fps if not above and 45 fps at the least in ultra setting.(If neccesary I overclock my GPU).
Have fun building you rig.
(Also, get a 650 watt PSU unles you like to live on the edge and by edge I mean stupid.) (The rig given by producer is good as well, but stick will G-Skill ram you have selected ) .
Thanks for the advise ^^, I appreciate it. I had a feeling that motherboard was gonna hold me back, my gut was right! Any advise on SSDs? I keep hearing that I'll regret it if I don't get one.