MerrJ0210 is asking the right question because the choice of components depends on usage. I put together an initial build but the best choice might not be this based upon what you want to do.
By the way, if you want a fantastic cooler at insanely low price, run, don't walk and get that Dark Rock Pro 3, it has to be a typo.
PCPartPicker part list:
https://uk.pcpartpicker.com/list/cWvqf8
Price breakdown by merchant: https://uk.pcpartpicker.com/list/cWvqf8/by_merchant/
CPU: Intel - Core i5-7600K 3.8GHz Quad-Core Processor (£208.99 @ Aria PC)
CPU Cooler: be quiet! - Dark Rock Pro 3 67.8 CFM Fluid Dynamic Bearing CPU Cooler (£15.34 @ Eclipse Computers)
Motherboard: Asus - PRIME Z270-A ATX LGA1151 Motherboard (£133.67 @ CCL Computers)
Memory: Corsair - Vengeance LPX 16GB (2 x 8GB) DDR4-3200 Memory (£129.60 @ Aria PC)
Storage: Samsung - 850 EVO-Series 250GB 2.5" Solid State Drive (£83.45 @ Amazon UK)
Storage: Seagate - BarraCuda 1TB 3.5" 7200RPM Internal Hard Drive (£37.99 @ Aria PC)
Video Card: MSI - GeForce GTX 1060 6GB 6GB GAMING X Video Card (£249.99 @ Amazon UK)
Case: Corsair - 200R ATX Mid Tower Case (£55.98 @ Amazon UK)
Power Supply: SeaSonic - S12II 620W 80+ Bronze Certified ATX Power Supply (£64.63 @ CCL Computers)
Monitor: Asus - VX239H 23.0" 1920x1080 60Hz Monitor (£123.54 @ Aria PC)
Total: £1103.18
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-06-27 00:27 BST+0100