Here is a machine that I built about a year or so ago for video editing and it works great. I don't know that much about the new AMD processors but I really like my current processor. See the links below for some of the stuff that my machine has
processor:
http://www.newegg.com/Product/Produc...2E168191037273
I've got mine overclocked to 4.0GHz and it has been stable for nearly a year now, it is only possible with a CPU cooler like the one listed here:
http://www.newegg.com/Product/Produc...82E16835103065
Power-supply:
http://www.newegg.com/Product/Produc...82E16817153114
Cheap case (spend more here if you can)
http://www.newegg.com/Product/Produc...82E16811119227
Memory (probably not the best deal out there right now but it is what i have and it works great)
http://www.newegg.com/Product/Produc...82E16820145332
I have three of these in a RAID5 array and then I have a SSD for my main drive. Works great, I have the drives in the case and no extra software or hardware needed. I use the SSD for my boot drive, for speed and the RAID array for storage.
http://www.newegg.com/Product/Produc...82E16822136769
Motherboard that I use it's obviously not the best out there but it works for me. Make sure that your MB supports USB 3.0!
http://www.newegg.com/Product/Produc...82E16813128444
Here is a video card that I used for my brother's gaming PC and he likes it pretty well. I have a cheaper slower one that works fine for video but I would recommend something like this.
http://www.newegg.com/Product/Produc...82E16814500225
And then of course you would need some software and other odds and ends to make the deal but those are the basics and hopefully give you some ideas.