I hate choosing. So I went to Marktplaats (Dutch Ebay pretty much) and wrote some people selling their closed cans. From Aiaiai to AKG K545; I wrote everybody with an offer. First one to accept my offer I take. That way I don't have to browse Head-Fi for three days untill I make up my mind, lol.
Portability would be a plus though. I'm in the train every once in a whole.
Well, with that strategy I feel perfectly justified in saying, Good LUCK!
Hope you get one you like