@ cscutty: RE your PM.
The differences are:
I have used a faster CPU, his build uses a 4 core part, my build uses a 6 core part-think of each core as being a separate CPU. Although his R5 1500X has a higher speed ( 3.5GHz ) than mine ( 3.2GHz ) the extra cores make it faster due to its 6 cores.
My choice of CPU doesn't need a separate cooler, one is included with the CPU in its box.
I have used 16Gb of memory, I could drop it to 8Gb but the extra memory gives the system more room to work.
I have used a 3Gb graphics card ( often called a GPU or Graphics Processing Unit ) he uses a 6Gb card, this is for cost reasons, I couldn't use the faster ( and more expensive ) CPU AND a 6Gb card while staying under £800.
Note, neither of us has included the cost of a Windows licence, here's a modified build that does:
PCPartPicker part list /
Price breakdown by merchant
CPU: AMD - Ryzen 5 1600 3.2GHz 6-Core Processor (£174.84 @ Scan.co.uk)
Motherboard: ASRock - AB350M Micro ATX AM4 Motherboard (£61.98 @ Amazon UK)
Memory: Kingston - Savage 8GB (2 x 4GB) DDR4-3000 Memory (£89.65 @ Eclipse Computers)
Storage: SanDisk - SSD PLUS 240GB 2.5" Solid State Drive (£76.94 @ Amazon UK)
Storage: Western Digital - Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive (£38.34 @ Aria PC)
Video Card: Gigabyte - GeForce GTX 1060 3GB 3GB Windforce OC Video Card (£187.14 @ Aria PC)
Case: CiT - VANQUISH RED ATX Mid Tower Case (£35.53 @ Amazon UK)
Power Supply: SeaSonic - ECO 430W 80+ Bronze Certified ATX Power Supply (£45.64 @ Ebuyer)
Optical Drive: Lite-On - iHAS124-14 DVD/CD Writer (£11.17 @ Amazon UK)
Operating System: Microsoft - Windows 10 Home OEM 64-bit (£82.74 @ Aria PC)
Total: £803.97
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-11-11 19:48 GMT+0000
A few points:
Be patient and do some research, you sound young, so it'll be hard to hold fire, but I advise you to do so, this is an expensive purchase and it's possible to make plenty of mistakes.
Seek plenty of advice, here and in other Forums, actually assembling a PC isn't hard, getting the right parts is, the more you know the better informed your decisions will be.
Remember, The Wise use the magic learning word of Google.