I use to swear by anti-static wristbands... but it is largely overblown. So long as you are not shuffling your feet on carpet the whole time, and as long as you touch the case on occasion then you will be at the same ground level as the computer parts and it isn't an issue. However, if there is thick carpet under foot then a wrist strap is not a bad idea... just potentially overly cautious.
The part about not touching the bottom of the CPU is actually quite valid, but it is due to residue rather than static. Your hands, even when freshly washed, have oil on them. Plain and simple, humans are gross. End of story. It is just best not to touch any of the contact points between components because there is a chance (however slight) that something of your grubby hands will rub off and cause a mild short between pins which can cause issues.
That said, with the several computers I have built over the years my hands have slipped onto the back side on more than one occasion with no repercussions. But then again my hands were not covered in nutella either (I prefer peanut butter!).
As for building the PC, force is almost entirely uncalled for. If you feel that you are having to musscle something into place then chances are that you need to take a step back and see what you are doing wrong. Screws should go in easily unless you have them mis-threaded or have the wrong type of screw for the job. ATX standards are very precise, so unless you bought some $5 bargain case then all holes and mountings should fit perfectly with no need for wiggle room to get things to latch properly. Cables should always have a fair amount of slack, and if you have to make them taught in order to reach then it is time to go pick up an extension.
The only exceptions to this is the CPU socket and some CPU coolers which can require a little bit of force to make a good solid connection. Just make sure that the CPU is oriented properly before bringing down the LGA bracket and your CPU should be fine for the LGA installation. I have an EVO cooler as well and it does require a little bit of force to get the 2nd screw onto the tension rod that holds the cooler to the CPU. Mind you, it should not take all of your strength or weight... but it may be on the verge of worrisome, especially your first time when the bar is fresh.
One last note on your build:
When planning out your cooling, keep a few things in mind. One big thing is that the CPU die under that heat shield is a single long piece. If you orient your CPU cooler to blow front-to-back like normal then the length of the CPU die will line up with the center 2 heat pipes of the EVO cooler, making the outer pipes essentially useless. If you mount the cooler to move air bottom-to-top then the heat pipes will be perpendicular to the CPU die and all of your pipes will be used properly. This can make a decent difference in the cooling capability of your EVO cooler, and in my system I found a 5*c drop at idle, and a 10*c drop on load simply by changing the orientation. This is much more important on newer chips as their heat density is so much higher and it is harder to disperse that to the heat sink.
Also with the EVO, the fan kinda sucks, which may become an issue during the hotter times of the year. Thankfully the stock fan on it is easy to replace, and it comes with mounting brackets to put a 2nd fan on the other side for a push-pull configuration. I got 2 nice low RPM Corsair 120mm fans for it and now it is dead silent while offering much more cooling performance. This is not really a huge deal, but something to think about down the road.
Another thing to note is that you will want to upgrade your SSD to something larger down the road. I have a 120GB SSD in my wife's computer and just with Windows, Office, a few small applicaitons, and her music and documents the drive is essentially full. That leaves no room for things like games, scratch discs, and other things that are greatly affected by the performance of an SSD. On my own rig I have ~40 games (not all of them large), plus adobe and office software and I am using ~300GB of space on my 480GB system drive. I then shoved all of my music, backups, videos and other bulk files to the HDDs. Especially games like Skyrim which have monumental area loading times it can bring your wait time between areas from ~30 sec down to ~5 sec, and trust me it gets really old late in the game when you are constantly fast traveling from area to area, and are going in and out of buildings for missions. 120GB is fine for now, but once you can afford a 500GB-1TB SSD then jump on it. I think the prices are going to drop dramatically next year, so it may not be as expensive to do as you think.
Wifi kinda sucks. I know that there are times when there is simply no way around it, but if at all possible then move to a wired connection. If you cannot get a wired connection then get a proper wirless card and some external antennas. Those USB wifi adapters are fine if you are just browsing the web in a small apartment, but if you are in a medium to large house, with lots of other devices or wifi networks in the area, then it can become an issue.
Other than that, it should be a good rig! I hope everything works well for you!