Since you want to video edit and game you have competing priorities
Video: CPU>>RAM>>Storage>>GPU
Game: GPU>>CPU>>RAM>>Storage
To facilitate the video editing while still maintaining the gaming performance it would be better to go with a 5820K CPU, slightly cheaper (375 USD). This also means a change in mobo to X99. As well editing likes lots of ram so bumped it up to 32GB. Last, you will needs lots of fast storage so I changed it to a single 1TB SSD. You can add to this later but you don't want to use a plain 7200RPM SATA drive for editing, it will slow things down tremendously.
I think the build went up slightly but I can't tell because there is no pricing on your mobo.
PCPartPicker part list:
http://pcpartpicker.com/p/8QLncf
Price breakdown by merchant: http://pcpartpicker.com/p/8QLncf/by_merchant/
CPU: Intel Core i7-5820K 3.3GHz 6-Core Processor ($374.99 @ SuperBiiz)
CPU Cooler: Corsair H60 54.0 CFM Liquid CPU Cooler ($59.99 @ Amazon)
Motherboard: ASRock X99M Extreme4 Micro ATX LGA2011-3 Motherboard ($168.98 @ Newegg)
Memory: G.Skill Ripjaws V Series 32GB (4 x 8GB) DDR4-2400 Memory ($149.99 @ Newegg)
Storage: Mushkin Reactor 1TB 2.5" Solid State Drive ($249.99 @ Newegg)
Video Card: Gigabyte GeForce GTX 980 Ti 6GB Video Card ($649.99 @ Amazon)
Case: Phanteks Enthoo Pro M Acrylic ATX Mid Tower Case ($94.99 @ Amazon)
Power Supply: EVGA 750W 80+ Gold Certified Fully-Modular ATX Power Supply ($94.99 @ Newegg)
Optical Drive: Asus DRW-24B1ST/BLK/B/AS DVD/CD Writer ($17.78 @ OutletPC)
Operating System: Microsoft Windows 10 Home OEM (64-bit) ($87.95 @ OutletPC)
Case Fan: Corsair Air Series AF140 Quiet Edition 67.8 CFM 140mm Fan ($17.59 @ OutletPC)
Case Fan: Corsair Air Series AF140 Quiet Edition 67.8 CFM 140mm Fan ($17.59 @ OutletPC)
Total: $1984.82
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-02-02 09:36 EST-0500