Hi all, I'm finally going to invest in some noise canceling headphones. I'll be taking a trip overseas within the coming months and I would really like to have them for the long plane trip. Also, just for general use....my current Sony headphones are on their last leg. I'm going for Bose, and I want to make sure I do this purchase right, so I've got a few Qs: - There's a lot of models; which are the best? I've read Quiet Comfort 15. - How's sound quality? While I'm not mastering band tracks, I do some audio work and video work, and I'm an audio guy so I"m a little picky. I want these to sound as good as possible. Those are my main two Qs. Look forward to hearing what everyone has to say. Oh, might I also mention I would like ones that cover my entire ear, not just sit on top. Muffs, I guess is the word. Thanks!