I've just bought a second-hand laptop, a Sony Vaio VGN-SZ1HP/B, and it runs VERY hot to the touch. So hot, in fact, that I can't touch the bottom left-hand side of my machine for longer than a few seconds without having to pull my hand away.
I downloaded SpeedFan and checked out the computer's temperature, and it doesn't seem too high (I think -- although the little flames on the screenshot don't inspire confidence).
Is the machine OK? Should I be concerned? It runs a Core Duo T2300 with a GoForce Go 7400.
UPDATE: Since I posted this question it seems to have cooled down. I can hold the computer now without having withdraw my hand. It's hot, but not so hot that it would burn my fingers. I took another reading (below). Is it OK for it to get "$%*#!" hot during heavy loads?