I'm looking for a decent pair of ear phones for commuting purposes: I like to listen to my recent mixes while relaxing on a train. I just bought a pair of Klipsch S4 but have to take them back as I didn't like the highs of them (they were very good up to about 5kHz, but above that just metallic sizzle that colours the sound badly). Has anyone got any recommendations? I spend more than an hour a day listening to them so price is not really an issue. Currently I'm using a cheap pair of Sonys which are ok but now I want to upgrade. My normal listening setup includes Blue Sky and Tannoy speakers and also Grado SR80 headphones.