Really, 32Gb is something of an expensive waste, unless you're editing large videos or using the system for massive datasets or CAD projects, but if you're going to use the system that way, or will have several large applications open at once, then by all means bump up the RAM to 32Gb.
That AOC monitor is a very good one BTW, not 4K but it'll be pretty impressive, especially with a GTX1080Ti blasting it along.
What about cases? They're always a very personal choice, particularly so with such a large budget available, so if you have any preferences we'll work them into any future build suggestions.
Cooling and noise might be an issue for you, Supabos went for a big, quiet Kraken liquid CPU cooler, I went cheaper with a tower air cooler, any preferences?
Same for the GPU, we both went for an air cooled card but for an extra <>150 you could go for a hybrid.
And with some revisions, from the Blue Team we have:
PCPartPicker part list /
Price breakdown by merchant
CPU: Intel - Core i7-7700K 4.2GHz Quad-Core Processor ($477.00 @ Shopping Express)
CPU Cooler: NZXT - Kraken X52 Rev 2 73.1 CFM Liquid CPU Cooler ($219.00 @ PLE Computers)
Motherboard: ASRock - Fatal1ty Z270 Gaming K6 ATX LGA1151 Motherboard ($239.00 @ IJK)
Memory: G.Skill - Ripjaws V Series 32GB (2 x 16GB) DDR4-2400 Memory ($315.00 @ IJK)
Storage: Samsung - 850 EVO 500GB M.2-2280 Solid State Drive ($219.00 @ PLE Computers)
Storage: Seagate - Barracuda 2TB 3.5" 7200RPM Internal Hard Drive ($119.00 @ Storm Computers)
Video Card: MSI - GeForce GTX 1080 Ti 11GB SEA HAWK X Video Card ($1342.90 @ Skycomp Technology)
Case: NZXT - H440 (Matte Black/Red) ATX Mid Tower Case ($179.00 @ PLE Computers)
Power Supply: SeaSonic - 650W 80+ Gold Certified Fully-Modular ATX Power Supply ($189.00 @ PCCaseGear)
Monitor: LG - 27UD68-W 27.0" 3840x2160 60Hz Monitor ($659.00 @ PCCaseGear)
Total: $3957.90
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-07-06 03:09 AEST+1000
And from the Red Team:
PCPartPicker part list /
Price breakdown by merchant
CPU: AMD - Ryzen 7 1800X 3.6GHz 8-Core Processor ($675.00 @ PCCaseGear)
CPU Cooler: NZXT - Kraken X52 Rev 2 73.1 CFM Liquid CPU Cooler ($219.00 @ PLE Computers)
Motherboard: ASRock - Fatal1ty X370 Gaming K4 ATX AM4 Motherboard ($199.00 @ IJK)
Memory: G.Skill - Ripjaws V Series 32GB (2 x 16GB) DDR4-2400 Memory ($315.00 @ IJK)
Storage: Samsung - 850 EVO 500GB M.2-2280 Solid State Drive ($219.00 @ PLE Computers)
Storage: Seagate - Barracuda 2TB 3.5" 7200RPM Internal Hard Drive ($119.00 @ Storm Computers)
Video Card: MSI - GeForce GTX 1080 Ti 11GB SEA HAWK X Video Card ($1342.90 @ Skycomp Technology)
Case: NZXT - H440 (Matte Black/Red) ATX Mid Tower Case ($179.00 @ PLE Computers)
Power Supply: SeaSonic - 650W 80+ Gold Certified Fully-Modular ATX Power Supply ($189.00 @ PCCaseGear)
Monitor: AOC - U2879VF 28.0" 3840x2160 60Hz Monitor ($479.00 @ Shopping Express)
Total: $3935.90
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-07-06 03:13 AEST+1000
As always, these builds are not cast in steel, they're for discussion so feel free to add/remove/change as you see fit.