PC build any changes?

16gb ram + 250gb ssd + much better gpu, for the same price:

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i5-7500 3.4GHz Quad-Core Processor (£173.94 @ Aria PC)
Motherboard: Gigabyte GA-B250M-DS3H Micro ATX LGA1151 Motherboard (£67.98 @ Ebuyer)
Memory: Crucial 16GB (2 x 8GB) DDR4-2133 Memory (£83.99 @ Amazon UK)
Storage: Samsung 850 EVO-Series 250GB 2.5" Solid State Drive (£83.61 @ Amazon UK)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive (£41.90 @ Amazon UK)
Video Card: Asus Radeon RX 480 4GB Dual Video Card (£177.23 @ BT Shop)
Case: NZXT S340 (Black/Red) ATX Mid Tower Case (£64.97 @ Ebuyer)
Power Supply: EVGA SuperNOVA NEX 650W 80+ Gold Certified Fully-Modular ATX Power Supply
Total: £693.62
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-04-21 10:59 BST+0100

Edit: And I don't usually change people's cases as they're the ones who have to look at it for the next X years, but for that price you could consider a Phanteks Enthoo Pro: https://uk.pcpartpicker.com/product/zV7CmG/phanteks-case-phes515ptg
 
Cheaper and faster than above:

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i5-7500 3.4GHz Quad-Core Processor (£173.94 @ Aria PC)
Motherboard: MSI B250M PRO-VDH Micro ATX LGA1151 Motherboard (£68.01 @ CCL Computers)
Memory: Corsair Vengeance LPX 16GB (2 x 8GB) DDR4-2400 Memory (£104.99 @ Amazon UK)
Storage: Sandisk SSD PLUS 120GB 2.5" Solid State Drive (£48.99 @ Amazon UK)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive (£41.90 @ Amazon UK)
Video Card: EVGA GeForce GTX 1060 6GB 6GB SC GAMING Video Card (£214.98 @ Amazon UK)
Case: Thermaltake Versa H15 MicroATX Mid Tower Case (£31.97 @ Ebuyer)
Power Supply: EVGA SuperNOVA NEX 650W 80+ Gold Certified Fully-Modular ATX Power Supply
Total: £684.78
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-04-21 11:47 BST+0100
 
the same Ryzen build :

PCPartPicker part list / Price breakdown by merchant

CPU: AMD Ryzen 5 1600 3.2GHz 6-Core Processor (£212.34 @ Amazon UK)
Motherboard: MSI B350M GAMING PRO Micro ATX AM4 Motherboard (£72.27 @ CCL Computers)
Memory: Corsair Vengeance LPX 8GB (2 x 4GB) DDR4-3000 Memory (£67.94 @ CCL Computers)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive (£41.90 @ Amazon UK)
Video Card: Asus Radeon RX 480 4GB Dual Video Card (£177.23 @ BT Shop)
Case: NZXT S340 (Black/Red) ATX Mid Tower Case (£64.97 @ Ebuyer)
Power Supply: Super Flower Golden Green HX 450W 80+ Gold Certified ATX Power Supply (£52.42 @ CCL Computers)
Total: £689.07
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-04-21 12:25 BST+0100
 
Solution
^ point there, but the 1600 vs 7500 is a valid one. i remember my laptop with i5 u series cpu/820m graphics having a significant perf reduction when dota[u call that cpu intensive?] got updated to 7.0 patch. so for those games n 'etc' there? i would stick with ryzen