You have nothing to worry about with regards to an ESD, regularly touch any metal part of your case, a screw that's screwed into your case will be enough. Wear some shoes if you're that paranoid. Yes, your motherboard manual should be fairly clear with where everything gets plugged in, though there really isn't that much. It's a little intimidating at first, but there's not that much you have to think about or worry about. Also, I'm not sure if you've ordered the parts, but just an alteration to linkin's build, other users please comment if I'm missing something with my suggestion though...
Wouldn't it be better to cut back a bit on the motherboard, and go for a better video card?
Say this:
http://www.newegg.com/Product/Product.aspx?Item=N82E16813128544 Motherboard
And this:
http://www.newegg.com/Product/Product.aspx?Item=N82E16814127564 GPU
In total, it would end up being less overall.
Also, @ OP. I know building a computer can seem a little daunting at first, but it's really much more simple than it appears.
Feel free to ask any more questions if you get stuck.
...Unless it includes something about you shorting your parts