You don't specify why your requirements require a laptop. You talk about doing things "all day" so certainly you are not on battery power all day.
For me I require the portability of a laptop, such that I can move to conferences with my machine and do presentations, or go to coffee shop to work. However, I never need battery power, and am always near an outlet.
The right all-in-one will give you that portability, power, and cooling, but you'll be tethered to an outlet. In the rare case I don't want to shutdown my apps between outlets, I shutdown using hibernate.
I use a Thinkcentre e93z, and for a case I found the ILugger 23, which is intended for a Mac all-in-one, but the internal dimensions matched my machine.
"No, I'd say it's time for you to learn what "one-way" means. Mars ain't around the damn corner."
"martian rover maintenance infrastructure" sounds like the repair infrastructure is on Mars, so you would just bring it back to that location on Mars.
"Calm down there"
His post was pretty calm. Yours... not so much.
Do you suffer painful elimination? -- Don Knuth, "Structured Programming with Gotos"