I really like booktabs, it creates great, high quality tables (when I say quality I mean that they are really easy to read and look very clean). I feel weird when seeing a table with a lot of cluttered \hlines and \clines everywhere...

What table tools/packages do you use?
I'm making a first person view game.  I have an invisible collision body that I use for interaction with other objects.  I have it so that the player can "shoot" cubes.  How ever, if the player looks down and tries to shoot (for example if an enemy is coming close) the bullet gets bounced off the collision body for the character.  Is it possible to make it so that my bullets can collide with everything except for the collision body?  Thanks!
