Any Thoughts on build?

Haha I only wish I could afford that..

Everything looks perfect except the GPU. Unless you're getting the blower style cooler for a specific reason, don't.

It is a good build. I would go with a 960 EVO as a NVME SSD has better performance. I would also go for the 500gb if your budget can hold it as larger SSDs have better performance.

I would not get the Acer Z35. It is a VA panel and they don't have as good of picture as IPS. Go for the Predator x34. I have the panel and it is fantastic. Maybe the best monitor in the world. It also has some accent lighting that you can change so it will go with your RBG goal.

PCPartPicker part list: https://pcpartpicker.com/list/GfBPZ8
Price breakdown by merchant: https://pcpartpicker.com/list/GfBPZ8/by_merchant/

CPU: Intel - Core i7-7700K 4.2GHz Quad-Core Processor ($322.39 @ OutletPC)
CPU Cooler: NZXT - Kraken X52 Rev 2 73.1 CFM Liquid CPU Cooler ($148.99 @ SuperBiiz)
Thermal Compound: Thermal Grizzly - Kryonaut 1g 1g Thermal Paste ($11.99 @ Amazon)
Motherboard: Asus - STRIX Z270-E GAMING ATX LGA1151 Motherboard ($179.49 @ SuperBiiz)
Memory: G.Skill - Trident Z RGB 16GB (2 x 8GB) DDR4-3000 Memory ($172.99 @ Newegg)
Storage: Samsung - 960 EVO 500GB M.2-2280 Solid State Drive ($233.88 @ OutletPC)
Storage: Western Digital - Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($45.69 @ OutletPC)
Video Card: EVGA - GeForce GTX 1080 Ti 11GB SC2 HYBRID GAMING Video Card ($804.98 @ Newegg)
Case: Phanteks - Enthoo Evolv ATX Glass ATX Mid Tower Case ($189.99 @ Amazon)
Power Supply: EVGA - SuperNOVA G2 650W 80+ Gold Certified Fully-Modular ATX Power Supply ($79.99 @ NCIX US)
Operating System: Microsoft - Windows 10 Home OEM 64-bit ($89.89 @ OutletPC)
Case Fan: Corsair - Air Series SP120 High Performance Edition 62.7 CFM 120mm Fan ($15.29 @ OutletPC)
Case Fan: Corsair - Air Series SP120 High Performance Edition 62.7 CFM 120mm Fan ($15.29 @ OutletPC)
Case Fan: NZXT - Aer RGB140 71.6 CFM 140mm Fan ($26.99 @ SuperBiiz)
Case Fan: NZXT - Aer RGB120 (3-pack) 61.4 CFM 120mm Fans ($56.99 @ SuperBiiz)
Case Accessory: NZXT - Hue+ LED Controller ($59.88 @ OutletPC)
Monitor: Acer - Predator X34 34.0" 3440x1440 100Hz Monitor ($1261.99 @ Amazon)
Keyboard: Corsair - K95 RGB PLATINUM Wired Gaming Keyboard ($169.99 @ Amazon)
Mouse: Corsair - M65 PRO RGB FPS Wired Optical Mouse ($46.99 @ Amazon)
Other: Mouse pad ($23.97)
Total: $3957.65
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-09-20 22:55 EDT-0400

Hybrid cooler will cool better than an air cooler, but I would not over pay for one. Most of the non-reference style air coolers do a very good job. So don't expect a giant performance increase because you have a hybrid cooler, but it will overclock a little better because you will remove any thermal barrier.

Both of my 1080ti's are underwater and my temps never go above 50C.

Did some changes, bigger SSD (for sure you need more than 250GB and with that budget 500Gb should be minimum.
Better oc motherboard in my opinion and also better quality 1080 ti, dont go with the hybrid, most of the times they are louder than the air as the pump makes annoying pitch and the Gaming card is really good.

^ +1