Does anybody here build robots out of lego, or are people more …

Does anybody here build robots out of lego, or are people more interested in less interesting stuff? :-p I'd love to see some of your creations. For the record, the group pic is a walking robot I made. The legs use 6 pneumatic cylinders, and up top theres a compressor using two motors. Problem is, because it can't move it's weight from side to side, it can only shuffle, not actually walk. I'm trying to make a more complicated walker at the moment with 2 extra cylinders in the legs to allow it to move from side to side and thus keep the center of gravity over the grounded foot. Does anybody have any tips? Also - this may be a really obvious thing to say, but if you want to build robotics, get mindstorms. I'm stuck with old lego, which isn't anywhere near as cool.