busanblues, if you are in Busan, you could pop down to the 'Apple' shop in Seomyeon opposite Migliore, and listen to the Phiatom MS400 and MS300.
I was there last weekend and thought the MS400 weren't too bad at all. I think my ESW9 were slightly better for me, as the highs on the ESW9 suit me better, just a touch more clarity. But I can imagine the MS400 being a fun phone and could recommend it quite highly.
I was in the shop for about three hours, and managed to listen to the following full-sized cans: Denon AH-D2000, AH-D5000, Grado RS1, Grado SR80, BeyerDynamic DT880, DT990, DT770, Sony MDR-XB700, Denon AH-D1001, AKG K81DJ, Shure SE530, SE420, SE310, AKG K340, D-JAYS, Q-JAYS, Westone UM1, UM2, Ultimate Ears Super-Fi.5, Triple-Fi.10 among others.
Overall impressions were that I liked the Beyers a lot. The Denon AH-D5000 disappointed me a little for the price. I don't regret buying the Kenwood KH-K1000 the other month. I think I made the right choice there.
I've owned the Grado SR-80, but didn't think the price difference between them and the RS-1 was worth it.
The Sonys sounded not too bad. The bass wasn't as boosted as I expected. It didn't interfer as much with other frequencies. Not bad for the price anyway.
The Westone UM2 impressed me a lot. I didn't care too much for the Shures. The Q-Jays weren't too bad. I couldn't get the Ultimate Ears to fit, so no comment there.
For the record I only used my Ipod with a Go Vibe Petite portable amp to listen to the headphones.
So what did I walk out with?
Beyerdynamic DT990.
Westone UM2 is on my wish list.