Though we are reluctant to post entries here that do not deal directly with LEGO® MINDSTORMS NXT, to and fro one of us feels compelled to show off certain robotics-related things nevertheless, for their sheer awesomeness.
In this case, I think Justin, a robot by the DLR (the German Aerospace agency) that is meant for repairing satellites one day, is also interesting for the NXT builder:
Note also the video on its great robot arm.
Besides, the YouTube channel of the DLR is a real bonanza for any robot builder (see the DLR crawler, e.g.).