As I mentioned last Sunday, I'm interested in trying to get a tabletop campaign running in the club!
However, I think it'd be best to try doing some one shots first instead of dropping people in head first without any ideas what to expect.
I've got a system called Maze Rats where you play as a bunch of dirty tomb-robbers going into a dungeon. It's very simple, very fast and, in my opinion, a good introduction to tabletop roleplaying.
If there's any interest I can run it on a Friday or a Sunday.