Robotic Vacuum's - anyone done much research?

[BrianG]

The iRobot Dirt Dog is probably what you're looking for. You're right; it's not a vacuum, but seems to be made for shops where dirt, wood chips, and other bits are found.

Another alternative would be to get the cheapest iRobot and scavange it for parts. Then, get a shop vac or something and modify it with the iRobots "guidance system". Probably have to beef up the iRobot's electronic drive to push a shop vac around though, as well as come up with a motor/drive system.