My father owns a pair of Grado SR80's, and I listened to them and loved the sound. I'm concerned about the fact that they are open, however, since I live in a college dorm with a roommate and do not want to disturb him. I have never heard the Audio Technica's, so I'm scared to pay $170 before...

I'm trying to decide between Audio-Technica ATH-A900's, Sennheiser 555/595 and Grado SR80's, but I'd like to try them out before I make a decision. Is there anywhere that I could see all of them? My dad owns SR80's, so I listened to them and I like them a lot. I want something more closed so...