Following from the post on Lego marble runs, here you will find a some videos of really cool #Lego #robots (and some more marble runs). +1 geek experience points for all the programmers and creators.
As awesome as they come
Lego car factory, wheelchair, rubix cube solver, gun and more
Cool Lego floor cleaning robot
Lego Coffee vending machine...
...and tea maker
The sort of music that robots listen to
Watch your fingers!