You're in arvada, right? According to my sleep-starved mind, there's a group that meets at the Borders at I-25 and County Line Road every Tuesday night, starting at either 6 or 7 pm. Information about that can be found by subscribing to the denvergames mailing list on yahoogroups.

Alternately, I've got a number of ongoing games happening in the north/east/centralish areas of Denver each month - more info at http://boardgames.meetup.com/24/.