Just bought from bluetin the ATH-A900 at $262. Went to his home to pick it up and must say he's a friendly chap. Tested it at home and I agree with previous poster - it gets hot very fast (and I have the aircon on, small room WITH fan blowing at me). Amazing sound though. At that price I think I made the right choice, as opposed to dishing out more for the Senn HD595.
My CS/DOD:S both do not have sound at the moment (latest steam update broke win98 source games) so will have to wait until they fix that. But COD, BF1942 all sound really spiffy
Thanks for the recommendation!! Back to my hot cans (literally)