www.news.com.au has the "Vote-a-matic 2.0" with a quiz on it regarding a lot of key issues. Depending on how you answer questions for each issue, and how importantly you rate the issues, it assigns a score to the political parties who have policies/emphasis relating to those issues. The parties' identities are kept hidden until you've answered all questions.
Helped me decide my vote, since I'm in the swinging voter category ;)
Oh, political comments (in jest or otherwise) will earn a padlock