I have got windows xp home striped down using tools from Lite Pc which is called Xplite and it does a good job as you can add thing back in if you removed something that you later need.

I have done the same setup on a pii 500mhz with 256mb of ram and it was very slow comperd to Alex Board.

When I get back form hols I am going to try and get my hand on fit-pc and the devloping tools for windows xp embedded with license (not the trial version) and buy some run time license for windows xp embedded and build it for the fit-pc and the Alex boards

devloping tools are about 800 and the runtime license are about 40 well they are $50 each.

I have a friend who also whats a carpc. I will build a few just in case more of my friends what one.