If you have an always on internet connection (DSL preferable, (well t1 or better but DSL will do over cable)) and a spare computer (preferably 433 or better) you can install Linux php, mysql, and download phpBB2 and install that. Then you have the ability to learn how to code, and create your own forum system at no direct cost (- minus the hardware and internet connection). I am pretty sure there was a note mod out there for phpBB.

This all takes a little time, know how, and a can do attitude. If your patient, the learning curve isn't too steep. If your interested, I can try and help ya get it going.

Bipper