Great thread! I think we might need a section just for hardware at some point 
I recently purchased an Ergotron monitor arm which I love! I wish I got one ages ago now. What I love most is how much easier it is to bring the monitor closer to you (when you need to focus) and then push it right back, for when you are just watching something.
I also ordered a Moonlander mechanical keyboard, but haven’t received it yet.
I would love a Mac Pro and an Apple Pro Display - but I’m not spending over £10K for it!!