PSU: You could go for a EVGA 500B which is cheaper and more widely used.
CPU - MOBO: You sure you want to go AMD? Since Intel's i3's i5's and i7's could help with editing depending on how heavy the editing you'll be doing is. Don't always judge a CPU purely on it's cores or price.
CPU Cooler: A good and trusted cooler but if you wanted to save some money you could ever go for a smaller cooler like a Hyper T2 or TX3.
RAM: Seems fine. If you ever need more for editing you can just buy another 8GB stick for dual channel. Or you could get 2 4GB sticks now and another 2 4GB sticks later on for quad channel depending on if the motherboard you go with has enough slots.
HDD: Seems good and is very well trusted. If you wanted to save a few bucks you could go for a Seagate Barracuda but unless the 5$ or so difference has much of an effect it's not really needed that much.
GPU: Seems fine. You could upgrade or downgrade it depending on how much you want to put into it. You could go up to a GTX 970 for an extra 100$ or go down to a 950 and save 50$. Eitherway depends on you really.
Case: Looks fine.
Optical Drive: Seems fine.
Keyboard Bundle: Looks good.

Any questions?