Well, This is my first Robot. I was interested in Robotics and saw your website about 1 and a half years ago or maybe 2. I did not have any Idea where to start, Until I found A Mindstorms NXT Set !
So, I modified the starting tutorial robot in the set and Here's CanBot. I added Some more places to put things on, Some sensors... I am really happy that now I got to make a robot at last !
There is a Walk around program for starters that I wrote. Note that there is no Keep Alive block so the NXT will stop the program automatically after 5 minutes or so depending on your settings. You can add one if you want. NOTE: The UltraSonic Sensor should be connected to port 1 ! There is also a Make Music file attachments, which makes the robot play different tones. Sometimes it is good, but sometimes, the music is the worst I've heard !
(I read your start here page, In where I live, They don't sell those parts so I bought a Mindstorms NXT set in my holiday to London ! )