Sony should release a really high quality sounding street style headphone maybe the same price range as the MDR-SA5000. I like these more than the bigger ones. I think they sound better. Oh, and I think they should definitely use a bio-cellulose diaphram for it. These were used for the 888 which sounded really good. I hope sony reads this and makes one.

The MDR-G74SL's are quite good, don't know if you can still get them. I use mine for workouts, sound great.

It seems that there is no great desires on makers to create "audiophile" street-styles as the demographics these cans serve do not usually put sound quality high on their list.