WilbyWalker is a hexapod. Legs and body are constructed mainly from acrylic sheet obtained from a dealer who sold scraps by the pound, not even $5 worth. Servos are standard ball bearing hobby grade servos and cost about $15 each. Each leg has two degrees of freedom. The brain is an OOPIC and the development kit was $50. WilbyWalker currently is operated under joystick control, from my scrap heap. Each leg carries 4 AA NiCad cells for its own power, these were Walmart close-outs for cordless phones and each 4-pack was $2.50. A few screws, nylon self-locking nuts, sheetmetal screws, washers, cable ties, and salvaged cable connectors added $15 or so to the bill. Additional materials are already purchased to add b&w video. A tiny camera was obtained for $30, an ATV transmitter for $100, and a video overlay generator for telemetry for another $100. These are awaiting installation. I also have a salvaged Polaroid SONAR module that I obtained from a scrap camera for $10... You can see several pictures and links from my WilbyWalker site at: http://members.aol.com/n4veh/wilbywalker/index.htm Email: dkdeckmann@aol.com