Pretty strong build, I would change a few things however. The i7-4790k is way overpriced. Get the i7-4770k, it's still as good. The i7 are especially powerful because they have hyperthreading which is great for video production. Add a mechanical hard drive (probably 2tb) because video files get BIG. Change your ssd to a Sandisk 128GB, it's less expensive and you don't need that much space on it because you will have the mechanical hard drive for your storage. Finally, change to the EVGA GeFroce GTX 970 Superclocked ACX 2.0, it costs less than the MSI but comes with better performance due to already being overclocked and a better cooling unit. Other than that, should be fine. Also, if you are really care about sound, then it would be beneficial to get a sound card, however only if you are really picky about sound. And lastly, are you all set with mouse, keyboard, speakers, and headset?