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Crossfire? Overpriced mobo? Aw gawd. Single gpu is always better, pick a decent one for that price(770 or 280x, etc) Ram pick is good, nice cpu, but better change SSD to m4 or the new plextor ones and cooler to d14 if you wanna overclock that beast and it fits the case. And the 2k rpm case fans...it will be a fucking rocket lauch sounds unless you'll be using them on 5v.

Get FX 8320, save some money and overclock. Go for one good GPU instead of 2 7870's crossfire. Those are getting old and single r9 280x or r9 290x would give better performance. Not the best PSU(even worse for crossfire), I would go with Corsair, SeaSonic or Antec. Also motherboard is a "little" overpriced.

Oh man that's an awful build

I would save some on mobo, go with larger SSD and good single GPU.

I won't comment on components directly because I'm out of the loop, but on design choices. Duo lower graphics are still lesser in performance then single beefed. If you are planing to overclock, don't do it, it will add to wear and tear to whole system not just that component. So just take item that is already set to clock you need. When you are choosing motherboard pick one which has double size of RAM then you are taking in the start, giving you enough room to upgrade in years to come. CPU socket should support next incoming generation of CPUs. In my job I'm using PC, a lot, but I don't need power as much as space on my screen for countless open windows, and I'm sure that you need even more for video editing, so get 2 monitors, because I'm cursing lack of space on my desk for one more monitor.
And at last, there is no need nuclear generator, as I've seen in some configurations, just use one of hundreds of power calculators on the web, but seeing yours I would say good choice.

I hoped that I was helpful.

In my opinion this build would be better. Much faster CPU, better SSD and HDD, single GPU though not quite as fast as crossfire HD7870s, and a better power supply.

I would say the ssd is bad grab 120GB minimum and the case sucks what for you need window its not gallery where you look inside at art, its a pc. Either you work and play on pc or look inside case at spinning fans

1) An AMD Processor with that price is really pointless.
2) You don't need an overpriced MoBo.
3) What type of video editing do you do? If you're editing videos like let's plays and other similar things you don't need that much.
4) Don't crossfire when you can get a better single graphics card.
5) Avoid that PSU
6) You do not need that many fans.

Here's something

I'm going to assume that you will overclock since the mobo's price is so high.

Took me some time but here's an AMD build for overclocking.