Have you already decided into which platform to make the change? I like the idea of trying something like Discourse. It does change a little bit though, another nice option which I don't know how effective will be is also XenForo 2, which they are trying to make more social (still in alpha).
Whichever way you go, wish you the best! Hopefully we can come and discuss/share knowledge with other people. Specially now that everyone is running their own business.