Here, this is a much better build and it is cheaper for both gaming and video editing. Just take off the monitor that you don't want, I chose 1080p 144Hz or 1440p 60Hz, whichever you want to choose, just drop the other. Then you can add the other peripherals that you need, the mobo I chose has wifi ac built in, so you don't need adapter. 16GB is enough for you, 32GB is a lot for just games and small portion of video editing.
http://pcpartpicker.com/p/KY2t4D