I actually started on this build around two years ago and I've been slowly upgrading and changing things over time. Overall, I'm very satisfied with how it has turned out. I mainly use this PC for gaming and everyday applications (internet surfing and Microsoft Office). Some of the games I play include Rust, GTA V, Arma 3, and Rome: Total War. All of these run around or over 60 fps with maxed out settings, with the exception of Arma 3 which is pretty CPU intensive. The costs listed in the part list may not be 100% accurate as I built this over a few years and prices change.
CPU & Cooler I purchased this when I first started work on the machine so it's a few years old now. Overall, it runs everything very well but I do notice that it starts to struggle on newer CPU intensive games. I'm also pretty happy with the Hyper 212 EVO. I did upgrade it from the original single fan with two Corsair SP120 quiet editions. I found that I needed the extra air flow with the way that I have my GPU rads set up pulling in hot air to the tower. Also, I think the cooler looks pretty nice.
Motherboard The Asus Z97-A is a great board. It has everything I need and I haven't had any issues with it. I would like built in Wi-Fi but I currently use a USB Wi-Fi adapter so it works out.
RAM I purchased this RAM a few years ago when memory was more expensive which is why I only went with 8GB. However, I haven't found that any of my games or applications really come close to using 8GB so I think it's good for now.
Storage 1.25 TB is plenty for me but with games using more and more space I may need a larger HDD in time. Overall, I'm very happy with the 840 EVO. It only takes a couple seconds to boot and shut down which is fantastic. I keep most of my games on my HDD so I don't see a great improvement in game load times.
GPU I purchased both of these XFX R9 290s off of Ebay and got a good deal for them, especially at the time. They definitely run hot and loud though. So I picked up a pair of Corsair HG 10s and H55s and I'm really glad that I did. I don't hear them at all now, even at full load. I really like how the HG 10 reused the original blower style fan and keeps all the components on the card cool. I know that putting the rads for the GPUs as intakes isn't the greatest as far as my internal temps are concerned, but I find it to be much more aesthetically pleasing, and my temps stay within exceptionable ranges so I'm not too worried.
Case The H440 is a blast to work with. Everything is open and easy to get to. Also, the cable management is pretty good in this case when compared to many others. The power supply shroud is also a great touch and makes it look very clean. Also, the fan hub in the back is great. It does run case fans at 100% though so I'm using the fan hub for the pumps on the H55 GPU coolers which works out well.
Power Supply The EVGA 1050 GS screams quality. I am very satisfied with this power supply and I like the fact that it offers me enough head room to potentially add a third GPU if I wanted. I was originally disappointed because EVGA didn't offer an individually sleeved cable set that was compatible with this power supply. However, they recently came out with one and as soon as I saw it I had to pick it up. I think it really brings everything together well and allows for superior cable management.
Others I have to say that I love the NZXT Grid+ V2. My system is whisper quiet now that I can control all of my case fans through NZXT's CAM software. As far as my monitor is concerned, it's over 5 years old now and it will probably be the next thing that I upgrade. It's served me well throughout the years though and I have no complaints.