Southern Sun on Table Mesa and Broadway (and/or Mountain Sun on Pearl, a couple blocks east of the Mall), Draft House on 13th or 14th, just off the Pearl Street Mall (used to be Redfish - only been there once since they changed, but was very impressed with the beers I tried), Wynkoop in Denver. That's what first comes to mind. I've been away for 3 years and my memory is shot. Oh, and Avery. Yeah, you've been there. Go back. Ooh! Oskar Blues in Lyons. That should keep you busy for a day or two. I suppose there's always BJ's on Pearl if you get bored. Yummy stout and decent others. Walnut on Walnut could be worth a trip.