Looks rjht up your alley:

[Arduino is an open-source electronics prototyping platform based on
flexible, easy-to-use hardware and software. It's intended for artists,
designers, hobbyists, and anyone interested in creating interactive objects
or environments. ]

http://www.arduino.cc/http://www.arduino.cc/

--
"He's not the Messiah. He's a very naughty boy! "
Brian's Mum