So, you want to do this once, because:
SO, my advice would be, wait. I know that's not what you want to hear and USUALLY it's not what we say, because there is almost always something "bigger and better" right around the corner. However, in this case, there are two, MAJOR releases coming. The Nvidia 3000 series graphics cards which early indications are that this is going to be another major boost in performance over current 2000 series models. And the Ryzen 4000 series Zen 3 desktop processors which will likely take the single core performance crown for consumer hardware AND retain the title for core count as well, at a significantly lower power consumption level than anything Intel has to offer in this segment.
Nvidia coming in September, Zen 3 supposedly coming not long after. I think these are worth waiting for because to be honest the current crop of Intel CPUs, which are a refresh of a refresh of a refresh of a refresh, are really not very noteworthy and are terrible when it comes to power consumption on the higher core count parts.
But that's your call, of course. As far as your build is concerned, there are seriously poor choices, no offense, among those parts, and a really unbalanced selection between the parts and the quality. In short, it basically looks like a rookie outlined it, which is no fault of yours, because you ARE a rookie. We were ALL rookies at one point in time, so we've all been there and we've all done exactly that.
If you were going to build right now, at the very high end, then I'd look more at something like this. Note, this does not include a graphics card, and you already know why. This is not just "find the most expensive thing and throw it in there". This is ALL exceptional high quality, known superior performance, best in class features parts. While there are always personal preferences to any build, such as RGB and case aesthetics, I don't think anybody will want to argue with the merits of this build if you were to built it today and then throw a flagship 3000 series card in there. It would be extremely hard to beat without waiting for the next Gen CPUs.
The displays, I'll leave up to you and perhaps those are a good subject for an entirely different thread, or an extension of this one, because those two will require a somewhat lengthy discussion on exactly what is going to work the best for you. I think we've already established that those will be 4k monitors but there are a number of other very important aspects to the selection of one such as panel type, size (Because, it NEEDS to be a specific size based on where you can realistically PLACE them in relation to where you will be sitting), and so on.
And if anybody wants to question ANY specific component choice below, I'll be more than happy to explain EXACTLY why that specific model was selected and why I believe it's the best choice for the build, within reason, without simply going ridiculously out of our minds with spending money unnecessarily on things that likely won't improve anything.
PCPartPicker Part List
CPU: AMD Ryzen 9 3900X 3.8 GHz 12-Core Processor ($429.00 @ Amazon)
CPU Cooler: Noctua NH-D15 CHROMAX.BLACK 82.52 CFM CPU Cooler ($99.95 @ Amazon)
Motherboard: ASRock X570 Taichi ATX AM4 Motherboard ($299.99 @ Newegg)
Memory: G.Skill Trident Z RGB 32 GB (2 x 16 GB) DDR4-3200 CL14 Memory ($214.99 @ Newegg)
Storage: Seagate FireCuda 1 TB M.2-2280 NVME Solid State Drive ($189.99 @ B&H)
Storage: Seagate IronWolf NAS 6 TB 3.5" 7200RPM Internal Hard Drive ($159.99 @ Adorama)
Case: Fractal Design Meshify S2 ATX Mid Tower Case ($158.99 @ B&H)
Power Supply: SeaSonic PRIME Ultra Titanium 850 W 80+ Titanium Certified Fully Modular ATX Power Supply ($258.98 @ Newegg)
Operating System: Microsoft Windows 10 Home OEM 64-bit ($108.78 @ Other World Computing)
Case Fan: Noctua NF-A14 PWM chromax.black.swap 82.52 CFM 140 mm Fan ($24.90 @ Amazon)
Case Fan: Noctua NF-A14 PWM chromax.black.swap 82.52 CFM 140 mm Fan ($24.90 @ Amazon)
Case Fan: Noctua NF-A14 PWM chromax.black.swap 82.52 CFM 140 mm Fan ($24.90 @ Amazon)
Case Fan: Noctua NF-A14 PWM chromax.black.swap 82.52 CFM 140 mm Fan ($24.90 @ Amazon)
Case Fan: Noctua NF-A14 PWM chromax.black.swap 82.52 CFM 140 mm Fan ($24.90 @ Amazon)
Total: $2045.16
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2020-08-27 00:02 EDT-0400