I don't know why this forum is always behind the "other" mazda 3 forum, but there is a new kit available from Koni. I am interested to see who will be the first to get the kit. I am definitely interested when I get the money.
http://www.koni-na.com/display.cfm?mt_id=1&mod_id=0&mak_id=25&my_year=2006&submit=Continue
http://www.koni-na.com/display.cfm?mt_id=1&mod_id=0&mak_id=25&my_year=2006&submit=Continue