This is my first PC build I have ever done. Feel free to ask questions.
CPU: I chose the top-of-the-line Intel Core i7-6700K processor for multiple reasons. The hyper-threading advantage over an i5 for multi-tasking got me to lean towards the i7. I also wanted a CPU that would benefit me years down the line. The i7 benchmarks and OC capabilities were just more reasons for me to spend extra on the CPU. The CPU hasn't slowed down once in 3 days of usage. It is a beast, and it isn't getting too hot.
CPU Cooler: This is a different cooler than I was going to buy at first. I first opted for the Corsair H60, but when I was ordering my case NZXT.com offered free shipping over $130. My case was $120 so I just spent an extra $20 for free shipping because I was not interested in paying $16 for case shipment. I did very little research about this cooler, but it keeps my CPU around 38C while running Cities: Skylines on high settings.
MOBO: I chose Asus Z170-A because I was told by a few people that Asus is the most reliable. I went for it, seeing that the board did have a socket for Skylake. I got to say, though, this board is pretty hard to get in the case because of the cheap I/O shield.After a lot of tight fits and adjustments, it slipped in and didn't move. The board does work perfect and has room for future expansion.
RAM: I had to settle for only 8GB because of my budget. I did get a single white module so I can expand a lot further in the future and so it looks great. I do intend to get 16GB total so I can have more intense programs running in unison.
SSD: I built this machine primarily for gaming but having a fast boot is good for any machine. I chose to go for Samsung's 850 EVO series because it offered crazy fast writing speeds. It doesn't slow down, either. The boot time for my machine is inside 15 seconds! Windows 10 is snappy and never misses a beat.
HDD: This was a no-brainer. I needed more than 250GB of storage, and I have never had a WD drive go bad on me. It works perfect, the speeds are great for mechanical, and it easily fits my misc files.
GPU: I got this card for a great price because of Amazon's great prices. I got this card when it was $17 lower than normal price and the same price as the other GTX 970 I was looking at. It had a better core and boost clock so I bought it. This was the first part I bought because I didn't want to see to deal slip by.
Case: I love this case's looks. It looks so clean with decent cable management and the LED 'NZXT' showing through the side windows looks glorious. The motherboard fit was tight, but it fits fine after a few adjustments. The 4 included fans on a fan hub allow for great airflow. I can still hear the CPU fan on the X31 radiator but with in-game sound it's inaudible.
PSU: This is a good power supply because of the warranty for 10 years. A great price for Fully-Modular 750W. It comes with two CPU cables and a MOBO cable that are kind of short. 4 VGA cables, 3 SATA cables, and 2 PATA cables.
OS: This is pretty simple. I just ordered an OEM copy of Windows 10 Home for $92 and used an external DVD drive for install. The install only took 15 minutes on a double USB 2.0 cable.
Overall: Was it worth the money? Yes. The in-game frames hit the maximum in every Valve game. I can even play Ultra settings around 55 FPS in ARK @ 1080p 60Hz. The machines boot in less than 20 seconds and I don't worry about games not working on OS X. Yes, I used to play games on a A**le machine.
Best CPU to be released for gaming. No slow-downs.
Easy install but instructions are a lot better on the website.
Great motherboard, a little tight fit in an H440, and a crappy IO shield that is stubborn.