I used to be a hardcore PC gamer but I dropped out of the hardware race years ago. The new DOOM renewed my interest and I can't play consoles worth a damn, so I decided to build a balls-to-the-wall system for gaming. It is overkill for DOOM (playable on my 4-year-old i5 system) but I was bored and wanted to have the latest & greatest again...for a few months, anyway ;)
My first purchase was the Fractal Design R5. I bought it on a whim during a Newegg promo, without even knowing how badass it really is. It is the most well-thought-out case I have ever seen, almost over-engineered. If you have owned a German luxury vehicle, you will know what I mean. The R5 is the Audi/BMW/Mercedes of computer cases, a masterpiece of hardware design.
Choosing a motherboard was toughest decision, but I got the Asus Maximus VIII Hero because of its overclocking & monitoring features, plethora of fan connections, Intel NIC and Realtek 1150 audio. The colored lighting is nice if you are into that.
I got a i7-6700k that is stable at 4.8GHz on air. I initially planned to go with a AIO watercooler, but after viewing dozens of videos and forum posts, I went with a Noctua fan because I prefer quietness. During Aida64 testing, I could barely hear the Noctua fan over the ambient room noise, which is partly due to the R5's excellent sound dampening.
I got the G.Skill memory on a Newegg sale. I've been happy with G.Skill in the past, no reason to switch.
The Asus GTX 1080 Strix (OC Edition) is an absolute beast, in terms of performance as well as size. I plan to do SLI eventually, but I feel lucky having just one of these monsters. I haven't taken the Acer Predator out of the box yet. I am about to move, so I'll wait until I get into my new place to mess with it.
The Samsung 950 Pro is the boot/OS drive, and the 850 Evo is for everything else. I know standard or hybrid drives offer much better value, but I hate waiting for stuff to load. I need just enough local storage for a few games since I keep all of my photos, videos and other crap on an external drive and in cloud services.
I got the EVGA power supply on a Newegg promo (see a pattern here?). I wanted something with plenty of juice for SLI, and this will do the trick.
The Asus Blu-ray drive wasn't essential, but I have some movies that I may eventually convert when I get bored. I also have Team Fortress 2 on DVD, maybe I'll fire that up one day.
I have been using a Ducky keyboard for the last 4 years, and it has held up exceptionally well. So well, in fact, that it still looks and feels like new. However, I wanted a TKL for my new system, so I got a MK Disco TKL, which is essentially a TKL version of the Ducky Shine 5. I am not a big fan of the font on the Disco, so I may get different keycaps. Update: The Disco "KBT brown" keys are too mushy for my taste. I thought they would feel like my old Ducky Shine cherry MX browns, but the Disco keys have a much softer travel and are less clicky. I will probably put the Disco on craigslist.
I picked up a Razer Deathadder Chroma because I liked the feel of the demo unit (I am a claw/light palm guy) and it looks cool...plus it was on sale. Update: I LOVE this mouse. I had been using a Steelseries Diablo III mouse, which was fantastic...but I like the Deathadder even more. Now I see why it is so popular :)
I got Windows 10 Pro from a reputable ebay seller that I found in a forum. You can get a license for cheaper if you know where to look, but I didn't want to take a chance on sketchy web sites.