@PosthumanPat I've been using an electrically adjustable sit-stand desk for around five years now. It's still one of the very best hardware purchases I've made.
Colleagues have made their own standing setups with tables, drinks cans and all kinds of interesting hacks, and that seems to work for them, but I've always been happy with my choice (which I funded myself, as I'm self employed).
The key aspect, for me, is that everything moves at once - keyboard, laptop, mouse, external displays, coffee, water - in just a few seconds. So, when I get the urge to change from sitting or standing, it's easy to stay in flow.
FWIW (and while it was a few years ago) the desk worked out less than a couple of days' billing, and has been faultless since (even though a few office moves. It's not light, though!). I got mine from http://www.nielsen-associates.co.uk/sit-stand/, if that helps.
WARNING: Please avert your eyes if you have cable-tidyness OCD: