Here is the build I have for you, includes 16GB of RAM and a 120GB SSD for your OS.
Feel free to upgrade the case to an S340 if you so desire, which is what I would do if I had the budget, but in terms of components I believe this to be the best build for your money.
Better quality power supply, good air cooler, another 8GB of RAM and an SSD for $20 less.
PCPartPicker part list:
http://pcpartpicker.com/list/NDHCLD
Price breakdown by merchant: http://pcpartpicker.com/list/NDHCLD/by_merchant/
CPU: Intel Core i5-6600K 3.5GHz Quad-Core Processor ($238.99 @ SuperBiiz)
CPU Cooler: CRYORIG H7 49.0 CFM CPU Cooler ($35.00)
Motherboard: ASRock Z170 Pro4S ATX LGA1151 Motherboard ($79.99)
Memory: G.Skill Ripjaws V Series 16GB (2 x 8GB) DDR4-2666 Memory ($62.99 @ Newegg)
Storage: Sandisk SSD PLUS 120GB 2.5" Solid State Drive ($42.15 @ Amazon)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($47.49 @ OutletPC)
Video Card: Gigabyte Radeon RX 480 8GB Video Card ($239.99 @ SuperBiiz)
Case: Thermaltake Versa H23 ATX Mid Tower Case ($29.99 @ Newegg)
Power Supply: SeaSonic S12II 520W 80+ Bronze Certified ATX Power Supply ($58.99 @ SuperBiiz)
Total: $835.58
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-08-04 19:20 EDT-0400