This is a 4-legged robot built by Oscar, original post can be found here:
This is a screen shot of what he has done so far.
Arduino 4-legged Robot - Stalker
I am going to build an Arduino Quadruped Robot. As usual, I will share my source code and show as many pictures as possible, to help those of you who are also building Quadruped robots. The way I do things might not be the best ways, and I am sure you can come up with better solutions, please let me know if you do!