Link to Part Picker [uk.pcpartpicker.com]
Build Specifications:

Case: Lian Li O11 Dynamic XL - White
CPU: i9-12900K @ 5.2GHz
CPU Cooler: Corsair H150i Elite Capellix AIO
Graphics Card: NVIDIA RTX 5090 Founders Edition
RAM: 32GB (4x8GB) Corsair Vengeance RGB Pro DDR4-3200Mhz
Motherboard: ASUS ROG STRIX Z690-A GAMING WIFI D4
Storage 1: 240GB Intel® SSD 535 Series
Storage 2: 2TB Seagate Barracuda @ 7200rpm
Storage 3: 4TB Seagate Barracuda @ 5400rpm
Storage 4: 1TB Samgsung 970 Evo Plus
Storage 5: 500GB Samsung 870 Evo
Power Supply: Corsair RM850x Gold
OS: Windows 10 Pro 64 Bit

Peripherals:

Mouse: Logitech G502 X Plus @ 1200dpi
Keyboard: Razer Hunstman Elite Optical-Mechanical Keyboard
Headset: HyperX Cloud Alpha Wireless, SteelSeries Arctis Pro Wireless
Monitor 1: Asus VG27AQ 27.0" 1440p @ 165Hz
Monitor 2: Asus VG278Q 27.0" 1080p @ 144Hz
Moniter 3: AOC I2369VM 23.0" 1080p @ 60Hz
Monitor 4: Some 24" tv thing 1080p @ 60Hz
Chair: Secretlab TITAN - 2020 Series - Amber

VR Headset: Oculus Rift

Internet:

Gigabit download
100mb upload