I don't want to bite off too much at once, and there is so much custom smf work on our forum (donationcredits, etc.) so i think we'll keep the smf forum.
But on the other hand, maybe it would not be the best idea to tie ourselves even further to smf by using an smf-specific cms (like tiny portal).
So I think maybe using a generic cms (drupal, for example) might be the way to go.
But let's not have the "which cms to use" discussion on this thread, we can save that for another.