Alternatives to fluoride are probably a good thought. I also heard brushing several times with oregano oil has some good affects.
One other point I didn't make though is that fluride is still being disposed of in drinking water.
http://www.curezone.com/dental/fluoride.asp
http://www.fluoridealert.org/
http://www.slweb.org/fluoridation.html
http://www.rvi.net/~fluoride/