Hello, I am a 16-year old in the US. I have wanted my own gaming desktop for over a year now, but am currently stuck on a crummy HP laptop. I want the build to be no more than $1600 and you should know I already own a good mouse, headset and an unopened copy of Windows 8, but lack a keyboard or monitor. I would like to have either a 120 or 144 Hz monitor is possible. I will put a link below to my part list... As for specifications, I would like to be able to play new games, such as Battlefield 4, Arma III, and upcoming releases at over 80 fps constantly. I have done ~15 hours of research and came to the conclusion that a good combo is the intel i5-4670k with nvidia 760 or 770. I have also included an SSD, but it is not a necessary part. I would be happy to look at a fixed version of the build or a personal build you have constructed/ know about that would work well. This is my first time building a PC, but I am an intermediate when it comes to computer hardware knowledge. Although I would not overclock at first, it is an option further down the road for me.
That is a good looking list. The only reason why I decided to throw my 2 cents in is because, I have a very similar build. The only thing I would recommend changing is the power supply. I have had a problem with a CX500 once. Corsair makes excellent power supplies above the CX series, but they use economical components to assemble the CX units. I would recommend something like: SeaSonic S12G-750 750W XFX P1-750X-XXB9 750W Antec HCG M HCG-750M EVGA SuperNOVA NEX 750 G(10 year warranty) You might even check out this EVGA I don't know much about it, but it is at a reasonable price, its by EVGA, it has good reviews, and it has a 5 year warranty.
From what I am seeing a good 750W power supply should run about $120.
Other than that, all the rest of your components look great, they may not be exactly what I would choose, but they should work out great for you.