(I can also testify that winning is amazeballs best thing oh my sweet Great Pumpkin corn maze paradise wonderful. But that's probably true of winning most awards that you really, really want.)
If you are currently a member, either Attending or Supporting, of Chicon 7, you are eligible to vote for the Campbell Award, along with the Hugo Awards. If you're not a member, either Attending or Supporting, you can view the membership rates by clicking right here. A Supporting Membership comes with voting rights and the complete Hugo packet, and is only $50.
Because writers who are eligible for the Campbell are, by their very nature, relatively new writers, it's possible that you don't know anything about this year's candidates. Jim Hines has sensibly decided to help you with this little problem, and has conducted interviews with all five of this year's nominees. Go, read, and be enlightened!
We have a truly awesome class of Campbell nominees this year; any one of them is worthy of the tiara. Because remember, the Campbell is one of only two major genre awards that comes with a tiara (the other is the Tiptree).
In closing, I present the comic strip I drew to commemorate my own eligibility: