Do not buy WD Black HDD. Take just normal blue or seagate barracuda. They are cheaper and quality is same level as the blacks do have.
SSD is missing.
For your work is best to have two SSD:s One bigger where your OS is. And other for cashing. This can be cheap 60 to 64GB drive. OS drive needs to be 256GB or bigger.
Too big PSU. 550w is enough for the build. This is really good reliable PSU.
http://www.newegg.com/Product/Product.aspx?Item=N82E16817182262
Id take GOLD label PSU. PLATINUM label is not so much better in efficiency level than gold. So you really are paying for nothing. And reliability s not good in digital PSU. Normal (non digital) is much better in reliability. Seasonic and Rosewill are maybe the best PSU makers now. XFX is good too. Corsair is not so good anymore.
Here is good platinum PSU:
http://www.newegg.com/Product/Product.aspx?Item=N82E16817182271
Look here:
http://www.behardware.com/articles/843-8/components-returns-rates-5.html
Power supplies:
- 2.13% Corsair CX600 V2 80PLUS
- 2.02% Antec High Current Gamer 620
- 1.96% Seasonic X-760
- 1.84% Corsair Gaming Series GS700
- 1.83% Corsair Professional Series Gold AX850
Here is build I made for you.
PCPartPicker part list:
http://pcpartpicker.com/p/1hzK8
Then last but not least. Best for video editing is take 2011 build. 3930k and X-79MoBo.
New 4960 is coming out soon so maybe you better wait new cpu to come in store?
anyway here is 3930k and X-79MoBo.
PCPartPicker part list:
http://pcpartpicker.com/p/hvSl
And bit info for that SSD and HDD build.
To bigger SSD you put OS and smaller you is for fake cashing to your video editing software. The two 2TB drive to RAID 0. Here you put unedited material. To 3TB drive you put the edited material.
Video card you did pick up is good enough. But 760 is new so I went for it because it do have lots cuda cores and other stuff. it is really much faster than old 660. It comes better choice in future. But if you want to save money take the 660.