I'm in the same boat as you, Jeff.
I can get into details of these things later, but a short list of things to focus on in community building would be:
-Identity (What sets your community apart? What do they stand for?)
-exclusivity (how are the true members different from others?)
-mobility (can members gain a higher status in the community through their efforts?)
-Leadership (guiding people through the experience and setting the tone of what the community should be)