[russell]

Lifting a robot with power from 12v batterie(s) would be a snap. Anyone ever use one of those deals the appliance installation people have where you plug a vaccum into it and it will lift your refrigerator right up? Its pretty cool, all you gotta do is give your refrigerator a tap and it will slide right across the kitchen. If you just got one of those and got an old (or new, we just like old stuff) inverter you should be set. Just vaccums are kinda loud, and you might have to use multiple batteries.