Awesome steel102, can't thank you enough for the background info on what's good and what's not when it comes to headphones. I've got that head-fi site bookmarked now, so I can refer back to it when and if I have to go the headphone route. The open air situation with the Grado isn't a big deal, I live in a quiet neighborhood and I live alone so I wouldn't bother anyone else in the room. My problem with open air is they tend to be a bit wimpy on the bass. I'll probably steer for the closed, the A900s.