Simple shooter verses Arm--seeking advice

[Greg Shaw]

We are a second year team with very limited resources. We are trying to decide between a shooting feeder bot and a robot that uses an arm to pickup balls and deliver them to other bots. I am leaning towards the arm because we can use it to push the bridge down and to pick up balls. To be honest I am leaning towards an arm because I have no idea how to build a shooter. Still, I would love to build a simple shooter--but how? Has anybody come across a picture of a very simple feeder bot shooter? I am not worried about scoring baskets, I just want something that can suck up balls and shoot balls in the direction of alliance bots that can score baskets. Also, I am interested in thoughts about whether as a second year team without a lot of technical expertise should be focusing on a shooter or an arm that can pickup balls and manipulate the bridge--or maybe we should focus on something else entirely.