Well, I use Mambo and love it, but for forums I am torn between iKonboard and SMF. SMF is better looking in general, but iKonboard seems easier to administrate. I have attempted to use both with Mambo, but there is no iKonboard integration with Mambo (any programmers out there who would like to help me would be appreciated). If someone is interested in this and needs webspace to try and work on it (I am pretty much illiterate to programming besides HTML), check out www.hosthelpers.net. Any hel pwould be greatly appreciated as I wouldn't really enjoy trying to move my forum to a different system.