I'd add an NVME drive for your OS drive, it is worth it, even on the low end.
Arctic silver 5 is ancient technology, get gelid GC extreme or thermal grizzly.
Your AIO cooler uses actual liquid, yes, but it's pre-filled, so there's nothing you have to mess with. I think that thermaltake unit is the same asetek cooler that is sold by corsair and NZXT among others, and I think they have better looking versions(though not 360mm), so you may want to look into that.
Thanks for the tips iamblades. I took a look into a few things, namely adding the NVME SSD (linked below in build). I also looked into the CPU coolers you mentioned but lot's of them did not get such rave reviews so I stuck with what I had.
One thing I did change as you'll see is, since I'm not doing liquid cooling I went with the EVGA 1080 Hybrid in SLI, now my main question is....will those fans fit in my case? I'll have to store one fan in the back by removing the one that's there but then not sure where the other goes if I go with the AIO CPU Cooler up top. What do you guys think? I originally wanted 2xEVGA SC 1080 but see great reviews about the hybrid and how cool it stays.
Build Link:
https://pcpartpicker.com/list/2GrxTH
Parts below:
CPU: Intel Core i7-6700K 4.0GHz Quad-Core Processor
CPU Cooler: Thermaltake Water 3.0 Ultimate 99.0 CFM Liquid CPU Cooler
Thermal Paste: Gelid Solutions GC-Extreme 3.5g Thermal Paste
MOBO: Asus MAXIMUS VIII HERO ATX LGA1151 Motherboard
Memory: Corsair Vengeance LPX 32GB (2 x 16GB) DDR4-3200 Memory
NVME SSD: Samsung SM951 128GB M.2-2280 Solid State Drive
SSD: Samsung 850 EVO-Series 250GB 2.5" Solid State Drive
HDD: Seagate Barracuda 2TB 3.5" 7200RPM Internal Hard Drive
GPU: EVGA GeForce GTX 1080 8GB Hybrid Gaming Video Card (2-Way SLI)
Case: be quiet! DARK BASE PRO 900 | BLACK ATX Full Tower Case
PSU: EVGA SuperNOVA 1000 P2 1000W 80+ Platinum
Case Fans: Corsair Air Series AF120 Quiet Edition (2-Pack) 39.9 CFM 120mm Fans
If you look at the PC Partpicker link you'll see I picked up 6 of these case fans, but relating to my question above regarding the case and 2x 1080 Hybrid's where would I even fit them? Anyone with experience?