First off, I'd just like to say I love the site so far. It is great to have found so many Broncos fans and fans of the other Denver teams. From the looks of things, you have a new member who is here to stay.
Secondly, I just thought up of a couple of possible suggestions. I thought it might be nice to have seperate forums for the Rockies, Nuggets, and Avalanche. I think it would help promote discussions on them as well, especially in the football off-season.
Either way, the site is amazing. I'm very glad I found it.