Best closed back phones for iPod on the move
Would welcome advice on a good pair of closed back phones to listen to my iPod while travelling on the train. This will be the bulk of my listening time. However, ideally I'd also like to be able to use the same phones with my Cyrus 8-based system at home. I don't know if that causes a conflict, as my understanding is that phones for iPod use have to be low impedance, and I don't know whether they can be used with home hi-fi.
I'd prefer closed back to the in-ear option: I find the latter too fiddly. I use Apple Lossless, not low bit rates, to record music.
Budget is fairly flexible, but really no more than £500.
Looking at reviews, etc., the ones to think of appear to be Denon 5000, Audio Technica 1000X, Beyerdynamic T70P, and Beyerdynamic T50P. The B+W P5 also appears to be well regarded. The Ultrasone 900 also appeals, as they appear to be foldable, but I haven't been able to find any reviews.
Any thoughts / advice / other ideas are very welcome.