Ah, thanks for the graph. I had seen them described as only semi-open, but there hadn't been an explanation of what that meant. Guess I'll move on to other options.

I've been lurking for a while and bought a set of Grado sr80's five months ago based on the recommendations in this list http://www.head-fi.org/a/headphone-buying-guide and I absolutely loved them whenever my roommate wasn't watching tv or making some kind of noise. I can usually turn them up...