Sorry for being a little late on the video but VEX State Championships will do that to you.
Video
https://www.youtube.com/watch?v=xXjOwtk1b50
As far as specs go we have a 6 wheel drop center drive ran off of two-two CIM AndyMark SuperShifter with speeds around 3 and 10 FPS. A little slow but it should be pretty strong.
We are using a pneumatic powered arm to drop down and two VersaWheels ran off of a 28:1 bag motor to collect the ball.
We raise the arm to our Aren Hill/VEX Pro inspired "choo-choo" catapult ran off of a 500:1 banebot 775 motor.
Fire away with any questions.