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Finally broken my robot post virginity. I decided to get an arduino to see what it was all about and was surprised how much quicker you can do things with the high level language and libraries. So I've built a line follower with parts from pololu and with a few lines of code and their sensor library got it working without too much fuss. The files are attached but I had to rename the header file to .txt to upload. Just change the extension to .h if you use it. Update 27/12/10: As Frits suggested ...
This is a companion discussion topic for the original entry at https://community.robotshop.com/index.php/robots/show/polduino