Try DreamLinux
http://www.dreamlinux.com.br/english/index.html
Screenshots
http://www.dreamlinux.com.br/english/saiba-screen.html
It is based on XFCE and is debian (sid?) based.
It has a very polished look and could be useful for Windows converters.
However, the user community is small so you would probably have to get support from the Ubuntu forums.
http://ubuntuforums.org
