I'm there for business and have accomodations at the Westin downtown. I've been out in the Boulder area a couple of times for business trips. I always get stuck out in the Westminster vicinity which is a bit of a suburban nightmare (no offense for those who live there - I'm from farm country; housing developments and traffic are not for me) - fortunately, those times, I have a car and the mountains around Boulder are within reach.
On this trip, I do not have transportation, but there are a number of ways to get to Boulder, I'm sure. Best bet would be to give me a place and a time and if I can make it, I'll make it.
--Glenn