Building my first computer. Need advice. Music production, light video editing.

1) low end power supply. that psu is considered the b1 series. you want evga's b2 / g2 / gs / p2 series. the nex is not sufficient for this type of system.
2) you could definitely save some money and lose the unnecessary liquid cooling. air cooling is always a better choice and lasts much longer.
3) go with an r9 380 or 380x 4gb over the gtx 960 for a little better performance at lower cost.
4) definitely overspending on the case big time. that money should be put into better quality internal parts. putting that much money into the case is always waste unless you have top of the line parts already.
5) you have an overclocking build, but the slowest speed ram selected. faster speeds are close in price and can only benefit you.
6) music editing generally doesnt take up a large amount of space. also, video editing is better done on a hdd rather than ssd. an ssd can only take a certain amount of writes whereas a hdd can be erased and written on with no penalty. also you need the larger storage size. you are better off with a combination of a 250gb ssd and a 1tb hdd. the samsung 850 pro is more optimal for a large number of writes for things like video editing and reliability, but it is a decent amount more expensive so i dont recommend going that route.
7) personally i'd drop the blu ray drive. its outdated tech and you can buy an external one if you really need it for occasions.

on a side note, your pcpartpicker link goes to nothing. you cant take the link in the address bar. there is a permalink within the webpage, up top.


My build:
(Everything is white/black theme.)

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i7-5820K 3.3GHz 6-Core Processor ($369.99 @ SuperBiiz)
CPU Cooler: Phanteks PH-TC14PE_BK 78.1 CFM CPU Cooler ($64.99 @ Newegg)
Motherboard: Asus X99-A ATX LGA2011-3 Motherboard ($228.98 @ Newegg)
Memory: Corsair Vengeance LPX 16GB (2 x 8GB) DDR4-2666 Memory ($59.99 @ Newegg)
Storage: Samsung 850 EVO-Series 250GB 2.5" Solid State Drive ($87.77 @ OutletPC)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($47.77 @ OutletPC)
Video Card: Sapphire Radeon R9 380 4GB NITRO Dual-X OC Video Card ($174.99 @ Newegg)
Case: Fractal Design Define S w/Window ATX Mid Tower Case ($69.99 @ SuperBiiz)
Power Supply: EVGA SuperNOVA P2 650W 80+ Platinum Certified Fully-Modular ATX Power Supply ($74.99 @ NCIX US)
Total: $1179.46
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-04-08 23:14 EDT-0400


Your build:

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i7-5820K 3.3GHz 6-Core Processor ($369.99 @ SuperBiiz)
CPU Cooler: Corsair H100i GTX 70.7 CFM Liquid CPU Cooler ($107.88 @ OutletPC)
Motherboard: ASRock X99 Extreme4 ATX LGA2011-3 Motherboard ($174.98 @ Newegg)
Memory: Kingston HyperX Fury Black 16GB (2 x 8GB) DDR4-2133 Memory ($64.49 @ Newegg)
Storage: Samsung 850 EVO-Series 500GB 2.5" Solid State Drive ($149.45 @ OutletPC)
Video Card: MSI GeForce GTX 960 4GB Video Card ($214.99 @ Micro Center)
Case: Corsair Air 540 ATX Mid Tower Case ($124.99 @ Amazon)
Power Supply: EVGA SuperNOVA NEX 650W 80+ Gold Certified Fully-Modular ATX Power Supply ($69.99 @ NCIX US)
Optical Drive: LG WH16NS40 Blu-Ray/DVD/CD Writer ($54.88 @ OutletPC)
Total: $1331.64
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-04-08 23:19 EDT-0400


Not only did you have a lower performing system, but you were overspending by $150. if you count the blu ray drive, than $100.