Im no expert, but based on what ive found that i7 you have is way too much for the rest of your build. Id reccomend spending less on the CPU and more on the GPU. Also, 750 ti gets beat out by most gtx 950s in bench marks for about the same price.
also... 2tb ssd + 4tb hdd? ru video editing?
is ram 1 16 gb stick or 2x8 or 4x4? id reccomend doing 2 sticks.
why a projector and a nice big screen?