budget video editing build

Solution
Yes, it's enough, but this build would be better as it outputs less heat:
PCPartPicker part list / Price breakdown by merchant

CPU: Intel Xeon E3-1231 V3 3.4GHz Quad-Core Processor ($252.99 @ Amazon)
Motherboard: Gigabyte GA-Z97X-UD3H-BK ATX LGA1150 Motherboard ($99.99 @ Newegg)
Memory: G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-2133 Memory ($64.99 @ Newegg)
Storage: Samsung 840 EVO 250GB 2.5" Solid State Drive ($119.99 @ Amazon)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($53.89 @ Directron)
Video Card: Sapphire Radeon R9 280X 3GB Tri-X Video Card ($199.99 @ Newegg)
Case: Cooler Master HAF XM (Black) ATX Mid Tower Case ($69.99 @ Newegg)
Power Supply: Antec Neo Eco 620W 80+ Bronze Certified ATX Power Supply ($29.99 @ Newegg)
Optical Drive: Asus DRW-24B1ST/BLK/B/AS DVD/CD Writer ($16.99 @ Newegg)
Operating System: Microsoft Windows 8.1 (32/64-bit) ($104.99 @ NCIX US)
Total: $988.80
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2014-11-25 12:24 EST-0500
 
Solution