This rig is my own personal computer generally used for gaming and normal web browsing. I've been adding bits and pieces together since September 2015.
The motherboard came bundled with the processor and I was little concerned as I had read a couple of negative reviews but I haven't had any issues with it so far. Clean bios for overclocking and allows for Crossfire (albeit one PCI Express x16 slot is running at x4). As long as you're not looking for SLI(not supported), this motherboard should serve most functions for the average user. Includes an M.2 socket, is Thunderbolt compatible, supports USB 3.1, and has more than enough ram capacity for someone like myself. Purchased the CPU and motherboard combo around ~February 2016.
My previous build was using an E8400 Core 2 Duo so upgrading to a modern four core processor was a huge leap in performance. The overclock I'm currently using is quite light and I might push it farther in the future. 4.4Ghz at 1.285V is fairly good and I'll likely stick with it in the mean time. If you're really into overclocking, I'm sure this chip will satisfy your needs. I have read that plenty of people achieve overclocks higher than mine while keeping their voltages under 1.4V.
As I live in Canada, the options for a good CPU cooler at a reasonable price were fairly limited. Decided on the the Hyper 212 Evo and it's performance has been solid. Keeps my CPU(@4.4Ghz) at about ~35°C at idle and in the mid 40's under gaming load. If it was available, I would have taken a look at the CRYORIG H7 but wasn't available here in Canada(at least at the time I was building).
Nothing special going on with the ram I chose. At most I would upgrade to 16GB of ram but never needed to so I've stuck with what I initially purchased. No issues at all as it's ram. Easy to enable XMP profiles and looks pretty decent with colour scheme that sort of happened on it's own.
For storage, if you're not on an SSD yet I definitely would recommend it. I can at least vouch for 850 EVO and I'm sure many others will back up the performance of it. A 500GB SSD is not really necessary but it's a nice to have. However, a smaller boot SSD alongside a larger capacity HDD is likely your best bet.
Before I jumped onto the R9 390, I was using a GTX 960 SC that I had to purchase back in ~August 2015 due to my very old HD 4XXX dying on me. The GTX 960 was fine but I knew it's performance would probably hold me back and it's resale value was likely to decline quickly with the onset of this years GPU offerings, I decided to sell the card to family at discount and purchase the R9 390 in March 2016. From the many reviews and discussions I had gone over, it seemed like the R9 390 was just edging out the GTX 970 in most titles. Alongside additional VRAM and support for async compute, it seemed obvious that the R9 390 was a better choice. In terms of overclockability, I was able to achieve a stable 1110 MHz core and 1625 memory clock without any additional voltage. Overall, the MSI card has run cool and quiet. Temperatures max out at about 70°C under gaming load on a medium fan curve, idles at ~50°C.
The power supply I chose has been working fantastic for me. I saw a solid deal for EVGA's top of the line SuperNova P2 and decided to pick one up. A stellar review from Johnny Guru(who if you don't know is one of the most trusted and reliable sources for power supply reviews) and Platinum rated efficiency, what more could you really ask for? Fully modular, black sleeved cables, a fully silent operational ECO-mode, and a 10-year warranty, I would highly recommend this power supply.
My rig before this build was done used an Antec 300 case. At the time, the Antec 300 was a solid choice. However, it really lacked the cable management that many modern cases provide and the fans really did sound like jet engines. I saw a deal on NZXT's S340 and decided to move on. Fantastic options for clever cable management, ample amounts of space for water cooling or long graphics cards, virtually silent fans, and a sleek minimalistic design. Some nitpicks I have are the rather seemingly haphazard 3.5 drive bays, scratch-able surfaces, and lack of optical drive support. I'll be honest, I rarely use CD's/DVD's nowadays so that's hardly an issue for me but may be for some. Overall, great case for the price with some very minor issues.
The Noctua fans were added late into this build as I wanted to add some intake fans to help improve airflow and help keep dust out of the case. Quiet as advertised and I honestly don't mind the style and colour.
The monitor I chose was mostly on a whim and desire to finally get a 1920x1080 monitor as I had been using a Dell monitor from a pre-built for far too long. Monitor has solid colours and plenty of lighting options. Allowed me to finally experience dual monitors and I cannot imagine ever going back to a single monitor unless maybe I got my hands on one of those fancy ultra-wide monitors. This monitor runs at 60Hz with ~2ms latency. I wasn't really looking to get into 1440p or 144Hz as it was out of my budget and I don't really play competitive games too seriously.
Lastly, the peripherals. For starters, the 6Gv2 is my first mechanical keyboard and I am completely satisfied by what it provides. I'm not into RGB lighting and not too into the super loud switches. Clean, sturdy, and relatively quiet compared to other boards, there isn't much to complain about. If you're not into the more flashy keyboard designs, the 6Gv2 is a solid choice. I made this purchase two years ago and it's still going strong.
While not as wildly popular as other mouse brands, Zowie seems to carry a high reputation regarding their products. The FK2 is simple and clean. It is Ambidextrous, has two basic macro switches, and has a wide range of DPI selections for your personal preferences. One thing to note is if you have larger hands, you might want to take a look at Zowie's larger models. I have fairly small hands and I would guess that people with larger hands than I might find the FK2 a little too small.
The last part of the list is the headphones I purchased two years ago. Comfortable with glasses and decent sound depth. The mic included isn't anything special and I'm sure you'll be able to find better headphones nowadays. If I were purchasing my audio set up today, I would likely look into a separate headphone and desk mic combo.