I should also mention that the Dew Tour takes place in Breck between December 13th and 16th which is a cool event to watch. If you are thinking of going during those dates, hotel rooms may be a little harder to come by.
http://www.breckenridge.com/eventdet...w=calendarview
If you happen to push your trip back into January, the International Snow Sculpture Championships takes place between the 22nd and 26th. It is also a very cool event to check out.
http://www.breckenridge.com/eventdet...w=calendarview