The company that employs me has a Linux-based product that allows you to connect extra monitors and keyboards to single computer and have multiple logins on the same computer. We have equipped a computer lab with this configuration and the students use it write applications with Eclipse, browse Facebook. It is not too complicated for them.

This is the page (its in Bulgarian, but Google translator does an excellent job):

http://translate.googleusercontent.com/translate_c?hl=bg&...

Feel free to ask away if you are interested, we have contacts on the website :-).