Recently I bought two Fujitsu-Siemens Amilo 1818 laptops for my employees. It's quite a decent hardware, plus I also found a page that says it works well with Ubuntu.
There is a catch however: internal wi-fi does not work on Ubuntu. I have been trying several different drivers (it's based on sis163u). But although I was able to force it to list available networks I was unable to connect so far.
On the other hand a cheap Pentagram horNET USB wi-fi adapter works perfectly. Special kudos for listing Linux as supported system on retail box.
