This is a computer that I started building in my second semester of high school during my computer maintenance class.
It started off pretty modest, me only using whatever spare parts we had laying around. The case I first used was nothing special, a common "normal" computer lab PC case. The original parts I had in it were as follows: an ASRock H97M Anniversary MB, 32gb Crucial DDR3 RAM I found laying around, an Intel Xeon processor I found, a Zotac GeForce GTX 970, a 500W power supply, and an old HDD and SSD. At first I thought that would be it for my build, but I was far from done.
I found a minimalistic, clean, good-looking PC case made by Corsair - the Carbide 275R. I bought this for about $70, brought it in, and took all my parts out of the old case and put them into this one. I got to thinking: why would I stay with older used parts if I just got this nice gaming PC case? So, since I just got my tax returns in, I bought a new motherboard, the MSI B360 Arctic, 16GB of Corsair's Vengeance RGB DDR4 RAM, and an Intel Core i5-8400 processor. I also got a Corsair H60 Liquid Cooler for my CPU, and upgraded my older SSD to a newer and faster Samsung 850 EVO 500gb. (I kept both installed though). I brought these parts in and installed them into my case, and, since my new motherboard supported dual graphics cards, I installed a second GTX 970 and SLI'd them. I also realized I would probably need a bigger power supply, as 500W wouldn't be enough to power all of this new tech. I was lucky - I found an unopened, brand-new EVGA SuperNova 750W power supply just sitting on a shelf. That was it for a while, and I put some games on it and used it for about a month and a half. After lackluster performance with the SLI'd 970s, I decided I had to upgrade. I was lucky here too, because right before this, our school had gotten brand new lab PCs with upgraded graphics - Gigabyte 1060s. I asked my teacher if I could swap a couple of them out with the 970s, and he agreed to let me. So I installed 2 brand-new GTX 1060s in my system. My games now play much better than they used to.
p.s. Yes, I know that SLI is not possible with the 1060. The reason I have 2 is because of a quad-display setup in the room where I work. (I need 2 graphics cards to use all 4 displays)
The final addition to this build was Corsair RGB lighting in the form of strips and ML120 fans.