davidr, 
I've been following @andybaio links to cool stuff on the #web for probably over a decade. Very frequently awesome stuff in there
However, the top item I see today is the "#DIY off-the-shelf parts #robot". Ooh, neat, perhaps a fun #electronics project!
2x ViperX 300 Robot Arm 6DOF: $5,695.95 ea
2x WidowX 250 Robot Arm 6DOF: $3,295.95 ea
1x Tracer AGV: $8,999.95 ea$27k for the basic equipment + another $4k for incidentals.
"DIY" is doing a lot of work here
(also, it's a waldo, not a robot)