Any good guides or videos for installing this HSF I just ordered one and I'll be getting it sometime this week. I'm getting rid of the stock intel HSF on my 3570K (didn't have the extra $35 when I ordered all my parts in late Feb). I've read that the install manual is not all that great. I'd rather not take the Mobo out of the case but will If I have to. I'm not concerned about clearance issues as I have low profile Corsair Vengeance memory. And I'll have to remove one of my side intake fans but that's no biggie I plan on adding it to the Hyper 212 Evo for a push/pull setup.
If you can get access to the back of the motherboard in the case, then you won't have to remove it, but unless you've got a real nice case, you will have to. However, you can do what I did last week and just unscrew the mobo (after disconnecting power to the power supply), and lift the motherboard out enough to screw down the backplate. Once the backplate is anchored, then you can screw the motherboard back in and seat the heatsink.
If you look at the little "manual" that comes with it, it's actually sufficient for your needs. I managed it and I'm not very mechanical at all (that's why I prefer to build and repair computers as opposed to cars, lawnmowers, or snowmobiles).
But I will point out that it was quite the hassle trying to install the backplate without disconnecting all the wires and taking the motherboard all the way out of the case. I was able to lean it out enough to get at the backside of it, but it was a pain trying to thread those nuts onto the backplate on the backside of the motherboard without being able to pull it all the way out. If you can handle that five minutes of difficulty, you should be able to manage without disconnecting all the wires, cables, and front-panel connections. That's the only reason I did it that way, I did not want to have to re-connect all those front-panel connections.
I would think you should be able to work through any wiring in the back. You just need access to the area directly underneath the CPU. The video linked to shows it clearly. Just push aside whatever wires you need to in order to get those nuts on. You might have to cut some zip ties if you used them and they are preventing you from pushing the wires aside.