Team 25 in 2000. Their robot was aptly named "Cradle-Robber"
http://www.raiderrobotix.org/robots/
(scroll down to 2000)
edit:
CD-Media has a few pictures of them in action-
http://www.chiefdelphi.com/media/photos/13151
They would park on top of the ramp, pick balls out of the opposing alliance's cradle, and drop them in their own, while blocking other teams from hanging on the pull-up bar. Ultimate defense.