I believe that I have reported on the Lego Mindstorms NXT kit, which allows people who are slightly technical inept to build a robot.
I had to admit the Mindstorms kit was difficult to use, but hopefully the ROBO Builder kit will be interested. You can build someones, as well as some four-legged one. The one that is in black is available for $430, and the transparent one is for $630.
Hopefully, ROBO Builder won't make the robots so easy to build that the bots will try and take over like in Terminator.