[ggruschow]

I use a dell mini 9 for my business. It sits in a closed ventless cabinet and hasn't overheated. It uses <7w with wifi and screen on, but mine are off. Also, there are no moving parts and it's got a built in UPS... I got it new for $199 last year.

[gmac]

I've also found the netbook route an excellent choice. http://www.museum.zoo.cam.ac.uk/ runs beautifully on a Dell Mini 10v with Ubuntu Server.