This machine will primarily be a gaming PC but I also wanted a computer that would last me longer than my laptops have. I do a lot of CAD and engineering as I am majoring in Mechanical Engineering. I also do video editing and render things in my spare time. So now I will talk about why I picked the parts I got.
CPU: I chose this CPU because I wanted a really good processor and I wanted to be able to overclock it as well. Some people might say an i5 would have been better but I wanted an all rounder PC. With the video editing I do an i7 was the ideal way to go. Haswell even has an upgrade path without the need for me to get a new motherboard.
Overclocking on the CPU: Everyone says the Haswell CPU's run hot and they do! However, because I am using the Corsair H100i I really wasn't too worried. I want to eventually run at 4.5 ghz but I don't really need that much speed right now. I did verify that my chip can go there but in the end I settled back down to 4.2 ghz with 1.25 Volts for peace of mind.
CPU cooler: I really liked the idea of a closed loop water cooler for the CPU. It really does a good job keeping everything in check. I ran the fans as intakes to cool the radiator. My only complaint is that the stock fans are very loud and I am only running them at half their speed potential. At full speed it sounds like a jet taking off. Weirdly enough when the top grate is put on my case they get louder. I will definitely be investing in some better fans, probably if Noctua makes ones that aren't brown. Other than that it is a great cooler. Also the fact that you have to go to corsair's website to download corsair link confused me. I spent about a half hour convinced that it came with a CD but after giving up and going on their site it seems that they want you to just get it online. Nice cooler.
Motherboard: I knew from the get-go that I wanted an ASUS mobo and boy this one definitely does not disappoint. The assistant fans actually do help to keep the air flowing through the TUF components. The board just looks slick and the fact that it comes with all these little inserts to protect your PC from dust sold it for me. My girlfriend has an Australian Shepherd and that little fuzzbutt leaves hair everywhere. The last thing I need is the hair getting into my system. Also this mobo is really easy to update the bios. The AI Suite 3 is also fantastic. It makes adjusting fan speeds and monitoring temps insanely easy.
RAM: This ram is FAST! 1866! The only thing I didnt like was that I had to manually set the frequency in the bios. Other than that though this ram is nice.
Storage: I wanted an SSD for the operating system, system utilities and a few of my favorite games. It is extremely efficient. It takes me about 10 seconds from pressing the on button to logging in and being able to start programs up. My laptop took at least 30 seconds. This saves time especially if you need to get on really quick to check something. The mechanical drive is great! I know it is not as fast as an SSD but its still faster than my old laptops HDD. Not much to say about them. Here's where my build gets a little more interesting. As you can see from the pictures I have put in my Seagate 1TB external drive into the hard drive bay. It is running via my USB 3.0 adapter that I got to avoid having to run the usb pass-through. It boots just fine and it has all my movies and top gear episodes on it that I've had for a while now. Great idea that I had to just put it in there! All together I've got a little over 2TB of storage which is more than enough for me.
Video Card: I wanted the top of the line GPU because for my whole life I have had games that I have never been able to play and now I can play everything! This card blows anything I've ever used out of the water! Yes it is not a Titan but for me this card is more than sufficient. I went with EVGA because I wanted to have the best! This card is the Super Clocked edition so it makes full use of its factory OC. I am very happy with its performance!
Case: Okay the first thing I thought when I opened the case was... "Holy Crap this thing is HUGE!" but after my initial reaction I really started to love this case. It is way bigger than I thought it was but I couldn't be happier with it. There is so much space to maneuver things around and configure it how you want it. The gaskets are fantastic for cable management. This was my first time building so I know my wiring could be better but the case was really "noob" friendly. I love the white too. This computer is going to be with me for a while and I wanted a timeless looking case. Check!
PSU: Yes I know I could have got a 500W PSU but I will be adding a second GTX 780 someday and I wanted to be prepared for that now. This PSU is an HX which means it's made by Seasonic so I know I was going to love it. It takes care of everything. Love it! It also came with a neat bag for the rest of your cables and a nice drawstring felt bag that I am using for the other hard drive cage that came with my case. Good Stuffs!
Optical Drive: I wanted to have some foolproof way to update things and install software. Simple and cheap!
OS: Happy with this too. No need to buy a full version when the OEM does the same thing for half the price!
Monitor: Okay this monitor is beautiful. The thin edges around the outside the ridiculous response time. Gaming in 1080p is amazing! I am very pleased with how this turned out!
Keyboard: CLICK CLICK CLICK! I am typing on this right now and I am loving every bit about it. Coming from a laptop I knew it would be a bit of a change but I am getting used to this thing and it is very fun to type on! Its not too loud either which is great because I won't be annoying anyone working on papers.
Mouse: This mouse worked really smoothly I love being able to adjust the sensitivity by touching the bottoms on the mouse. Great mouse and lightning fast with the laser.
Additional Comments: As you can see from the pictures I am using an external sound card. I used this to run 5.1 surround form my laptop. I saw no need to get a sound card and I run my sound through the external one. It even has a knob to adjust volume and mute it and it comes with a remote so I just use it to run my sound still.
Overall this is a nice build and I am very happy with how it all turned out. It should keep me happy for a long time and I do not see myself replacing it ever! Thanks to everyone on this site who helped me pick out parts I really am happy with the whole thing!