[SOLVED] can I go cheaper

Solution
This is what I'd go with for under your budget. The monitor is 1080P/75hz/IPS & Freesync.

PCPartPicker part list / Price breakdown by merchant

CPU: AMD - Ryzen 5 2600 3.4 GHz 6-Core Processor (£144.99 @ Aria PC)
Motherboard: Gigabyte - B450M DS3H Micro ATX AM4 Motherboard (£64.94 @ AWD-IT)
Memory: G.Skill - Ripjaws V Series 8 GB (2 x 4 GB) DDR4-3200 Memory (£70.79 @ Amazon UK)
Storage: Crucial - MX500 500 GB M.2-2280 Solid State Drive (£63.65 @ CCL Computers)
Video Card: Asus - Radeon RX 580 4 GB Dual Video Card (£154.97 @ Ebuyer)
Case: Fractal Design - Focus G (Black) ATX Mid Tower Case (£43.33 @ Aria PC)
Power...
Can you go cheaper? Well... you could, but you'd be looking at compromising performance in big ways for minimal change in price.

So, to save a bit you could drop to an RX 570 with a little performance loss. You don't need the CPU cooler at all unless you plan on doing overclocking so the Wraith cooler in the box with the Ryzen 5 2600 will be more than fine. You could look into getting a Crucial MX 500 instead of the Samsung SSD. That should save you some money, but anything else will be a much larger drop in performance.
 

WildCard999

Titan
Moderator
This is what I'd go with for under your budget. The monitor is 1080P/75hz/IPS & Freesync.

PCPartPicker part list / Price breakdown by merchant

CPU: AMD - Ryzen 5 2600 3.4 GHz 6-Core Processor (£144.99 @ Aria PC)
Motherboard: Gigabyte - B450M DS3H Micro ATX AM4 Motherboard (£64.94 @ AWD-IT)
Memory: G.Skill - Ripjaws V Series 8 GB (2 x 4 GB) DDR4-3200 Memory (£70.79 @ Amazon UK)
Storage: Crucial - MX500 500 GB M.2-2280 Solid State Drive (£63.65 @ CCL Computers)
Video Card: Asus - Radeon RX 580 4 GB Dual Video Card (£154.97 @ Ebuyer)
Case: Fractal Design - Focus G (Black) ATX Mid Tower Case (£43.33 @ Aria PC)
Power Supply: SeaSonic - G 550 W 80+ Gold Certified Semi-Modular ATX Power Supply (£75.94 @ Amazon UK)
Monitor: LG - 24MP59G-P 23.8" 1920x1080 75 Hz Monitor (£125.99 @ Scan.co.uk)
Total: £744.60
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2019-03-07 13:21 GMT+0000
 
Solution