[Klathmon]

This might not be the answer that you are looking for, but a good set of peripherals for my PC.

A good mechanical keyboard, 3 decent screens, a stand to mount them up high and make room on my desk, and a few other smaller things.

Those parts have done more for my career and sanity than anything else I could have spent my money on at the time.

I spend 40+ hours a week at or around this desk, I want it to be comfortable and work well for me. Not to mention that even if something makes me 1% more productive, it's worth it to spend $1000 a year on it and still "break even" in terms of cost (in theory)

[snow_mac]

A good chair?

[Klathmon]

I was lucky enough to have gotten a good chair from my wife as a present already, so that didn't really apply to me, plus my list of stuff was already getting close to $1000!