Being a non-respectable head-fi'er, and having only just recently become serious about headphones, I am currently very happy with my Koss KSC75's (on cheapo headband) that I have had for approx 3 weeks. And, I am suspecting that I will be elated with the PX100-II's once I get them. It was a semi-stressful affair settling on those two pairs - I can get a bit obsessive, and was relieved once I made up my mind. What I am afraid of now though is the thought of "better full-size phones". Sounds stressful! Do I really need them? I think that I will keep my expectations low enough so that these portables will keep me happy. Wish me luck!