Best place in CU to see a band, and pretty good for other stuff, too. Assuming Pygmalion rolls through again sometime, this is the premier venue (other than lame Krannert).
If a band you dig is slated to play at the Canopy Club for less that $35, you should definitely go. The sound, staff, and variety of places to watch the band (including above in movie theatre style seats) make for a great indoor venue. The front room is also an intimate, charming if you will, experience, though the sound quality suffers.
They also have Tuesday night trivia at Canopy at 7pm, which is lots of fun. It is 6 rounds of 5 questions per round, and goes pretty fast. It is hosted by the occaisionally humorous (but nearly always bearable) Fishing with Dynamite players. Prizes aren't great, but it is a much better format than similar trivia nights in CU.
You can park across the street at Krannert garages, and they card hard, even if you are fully geezered like me. On off-nights (not Fri and Sat), there are always drink specials that make Canopy Club as cheap to drink at as any Green Street shit bar. However, the alternative nature of college music keeps the worst elements of undergrad anti-culture at bay.