Paying for Volunteers?

E1ven asks: "As the Head Producer of a moderate/early OSS game project, one of the constant questions is how to get quality people to volunteer time. One idea I've come up with is the concept of paying someone a small sum ($100/week?) to volunteer to work on the project. [Offering money will] make volunteering their time easier for them. I know that some projects, like Freenet, that already do this to some extent. However, I'm not sure on exactly how to go about it. I can't just advertise on Monster or Dice, can I? Does anyone have any advice they could offer on this subject? Has anyone gone through it?"