This web page [1] from Damien Kee's site contains building instructions for the Domabot.  Domabot is Damien's design for a quick-build alternative to the relatively complex tri-bot designs in the 9797 kit or NXT Video Trainer 2.0.  Most of the NVT2 lessons can be used directly with (or easily adapted to) the Domabot.  Damien's has authored a series of books with activities for the Domabot and his web page has links to these books and other related resources for teachers.