After a few months of research, here it is.
I mainly use this new desktop of mine for gaming and word processing, with some basic YouTube or Netflix on the side.
I would recommend a 120mm radiator AIO cooler for people considering a similar processor, but my current one does a good job.
Note to self: The few problems I had when building included forgetting to short the power pins when POST-ing (probably because the motherboard LEDs lit up and I thought it was already on), and trying to get my Seagate drive to work (my solution is below on the review of the drive).
A great bang-for-your-buck processor. Easy to install and does a great job with games. Seems to handle Ableton Live Lite 10 with little difficulty (go hexa-core!).
15/03/19: Have messed around with that version of Ableton and 3 or 4 tracks with looaads of reverb uses about 20-25% CPU power.
Kinda hard to put together and hard to adjust once it's there, but it does a good job at cooling, is a good budget option, and looks nice in a windowed case.
I didn't really check the differences before and after application but it's non-conductive and cheap so...
I have noticed the Ryzen AM4 boards are cheaper for what you get than the Intel counterparts. Aside from that, this board looks nice and has that ASUS AURA that I can hopefully expand at a later date. Someone told me the heatsinks on some motherboards are quite sharp but I haven't noticed this.
Make sure you update the BIOs.
Not much to say about it at the moment, but this kit is more affordable than similar ones and is compatible with Ryzen out of the box (I've heard some kits aren't).
A fast boot drive that crushes Windows 10 boot times. It is admittedly rather small but it's only 30 pounds or so and goes nicely with a cheaper hard drive.
Had some trouble with it initially, and had to configure it manually through: Control Panel > System & Security > Storage Spaces (there are some Windows 7 guides on this on the Microsoft website, but they loosely apply to Windows 10, too).
I was initially going to get a GTX 1050 Ti, but with some compromises (like sticking to the free version of Windows 10) I managed to make room for this one, and I'm glad I did, too.
To start with, I was set on a Fractal Design Meshify, but this saved me £30 or something for some minor feature losses. The fact that the window isn't a full side doesn't bother me because it means the mess of power cables I had to stuff under the PSU shroud isn't so visible.
EDIT: About a month in, I've noticed the front IO is kinda tacky and you can make the ports wiggle left and right when plugging in USB devices. Other than that still going strong.
It's usually recommended that your power supply is double the wattage that you need to power your system so for my 335W PC I went for a 600W PSU.
Cheap, powerful, easy to install. Will hopefully 'upgrade' to RGB, because everyone knows RGB increases your FPS. Obviously.