Hi, a lot has been said here, and honestly if you can invest that much money, I would really get a high resolution display with at least 144Hz from day one.
For me it was awesome to go from 1080p to 1440p (only 60Hz), is amazing to be able to see more info on your screen.
I would have gone with a 4K display if it was posible back then, but I could not found any monitor where I live.
So really at least a 27 inches - 1440p - 144Hz gsync its the least I would get for something like an RTX 3080/3090. (There are other monitors that are compatible too, the list don't show them all:
https://www.nvidia.com/en-us/geforce/products/g-sync-monitors/specs/)
Of course is posible to play with a 1080p monitor but you I feel you would be wasting such s a high end card (unless 1080p ultra high refresh rate ( 360Hz) esports is your thing).
Otherwise it will be like using one of the top 10 Supercomputers for editing a word document.
Anyways, if you wana go crazy heres my recommendation, lets hope intel 11th gen bring pcie 4.0 to take the full advantage of that sweet Sabrent drive I included (it will work with pcie 3.0 no problem) . One drive for the OS and usual programs, one drive for games, and another for documents. And probably one of the best IPS, 27 inches, 1440p, high refresh monitors you can get for the money.
Later on of course, when available, replace the RTX 2080TI with the RTX 3xxx of your choice.
PCPartPicker Part List
CPU: Intel Core i7-10700K 3.8 GHz 8-Core Processor ($393.89 @ B&H)
CPU Cooler: Noctua NH-D15 CHROMAX.BLACK 82.52 CFM CPU Cooler ($99.95 @ Amazon)
Motherboard: Asus ROG MAXIMUS XII HERO (WI-FI) ATX LGA1200 Motherboard ($399.99 @ Amazon)
Memory: G.Skill Trident Z RGB 32 GB (2 x 16 GB) DDR4-3600 CL16 Memory ($229.99 @ Newegg)
Storage: ADATA XPG GAMMIX S11 Pro 512 GB M.2-2280 NVME Solid State Drive ($69.99 @ B&H)
Storage: Crucial MX500 1 TB 2.5" Solid State Drive ($109.00 @ Amazon)
Storage: Sabrent Rocket 4.0 1 TB M.2-2280 NVME Solid State Drive ($199.98 @ Amazon)
Video Card: Zotac GeForce RTX 2080 Ti 11 GB GAMING AMP Video Card ($1201.49 @ Amazon)
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: ARCTIC P14 PWM PST 72.8 CFM 140 mm Fan ($16.49 @ Amazon)
Case Fan: ARCTIC P14 PWM PST 72.8 CFM 140 mm Fan ($16.49 @ Amazon)
Monitor: LG 27GL850-B 27.0" 2560x1440 144 Hz Monitor ($499.99 @ Best Buy)
Total: $3764.00
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2020-09-10 19:45 EDT-0400
PD: As other wrote, this is really overkill for gaming at any resolution, and it should last you a good while. Still you could build a very, very good gaming PC, that will also last you a good while, including the monitor I used for a lot less, but was the fun of that right
Cheers!