Price/quality wise, there's a bit that could be changed aside from what tiny voices suggested already.
I just picked lower priced parts with similar features that you need/want.
CPU, leaving it as is until purpose is said.
CPU cooler, hyper 212 evo unless you want a better cooler.
Motherboard, asrock z97 extreme4 is good enough for everything you need and still supports a nice overclock.
RAM, the speed difference wouldn't be noticeable in most cases.
Hard drive, went with a blue over the green because it's faster.
PSU, lowered it to something that'll be enough to support your system and still have room for overclocking. If you want a bigger one look under the parts list
You don't need a blu-ray player unless you plan on watching blu-rays on your pc, and even then you could still save money on that because there's one that's cheaper.
PCPartPicker part list /
Price breakdown by merchant
CPU: Intel Core i7-4790K 4.0GHz Quad-Core Processor ($339.98 @ SuperBiiz)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($29.99 @ Amazon)
Motherboard: ASRock Z97 EXTREME4 ATX LGA1150 Motherboard ($143.99 @ Newegg)
Memory: Team Vulcan 16GB (2 x 8GB) DDR3-1600 Memory ($137.99 @ Newegg)
Storage: Crucial M550 256GB M.2-2280 Solid State Drive ($163.99 @ SuperBiiz)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($58.00 @ Amazon)
Video Card: MSI GeForce GTX 780 Ti 3GB TWIN FROZR Video Card ($629.99 @ Newegg)
Power Supply: Antec High Current Gamer 620W 80+ Bronze Certified Semi-Modular ATX Power Supply ($83.98 @ OutletPC)
Optical Drive: Lite-On iHAS124-14 DVD/CD Writer ($12.99 @ Newegg)
Total: $1600.90
If you do want a 850w for whatever reason this is the one I suggest:
http://pcpartpicker.com/part/evga-power-supply-220g20850xr