I liked the Fair Tax proposal, from what I read, and then I found out that Tom DeLay supported it. That man is not to be trusted, so I'm a little suspicious now.
There is an interesting treatise out there titled "The Least of These" which was written by a theologian regarding fair taxation in a Judeo-Christian society. I think that's what we're supposed to be, at least that's what I hear. In any event, I won't go into it too much because neocon heads might explode, but it it rather interesting. Basicially WWJT (who would Jesus tax) and what would He do with it...it would make for an interesting discussion with someone like DeLay who purports to be Christian and anti-tax.
It's still packed away in my boxes somewhere, I don't think you can get it at bookstores since I had to go to the university press and get it, but it's quite interesting. If anyone wants the name of the press PM me.