What philosophical evidence is there against believing in non-physical entities?

[Jesster]

From the top of my head I would say I'm challenging atheists more often than theists, since most theists making it here aren't worth debating at all.

You're right. I've been overgeneralizing quite a bit lately. Work has been eating at me. Had to terminate a contract with a non-performing vendor and now I have to do all the work they should have been doing AND correcting all their mistakes. So I'm feeling a little piled-on lately. Not that that's an excuse. It isn't.

Well shoot. Just make sure you take some time out for yourself. I hope the debate here isn't adding to that too much. Debates can be fun though, and I hope that's how it is for you.