My team 3467 Windham Windup has a robot like no other I've seen. The robot is completely ambidextrous. We have dual ball pickups, and a "sled-uchet" shooter; half sled and half trebuchet. The trebuchet part is a low mass sling which allows more energy to be transferred back into the ball for shooting/passing.
Here is the robot and UNH Competition footage:
http://www.youtube.com/watch?v=8EVAa...lMsJyhDvk57J7Q