This is my first PC build. I will be mainly using it for developing games, modelling 3D models and scenes and, most obviously, playing video games. I did buy the Hyper 212 EVO CPU cooler but I forgot about it and installed the stock CPU cooler that comes with Intel Core i7. I will probably install the Hyper 212 in a couple of months as the PC is running smoothly currently. Coming from a console and a cheap laptop, the graphics are amazing and the speed is unbelievable. Can't believe I waited this long to to build my first PC.
Update: I listened to the feedback given by some of the community members and sorted the wires out to the best of my ability. The 8-pin and 24-pin were too short to go through the routing holes in my case and still be attached to my motherboard. I was able to put all the other wires through the routing holes in my case.
I also managed to install the Hyper 212 EVO after a long battle removing the stock CPU cooler (you can see from the picture who won that battle).