For headphones, I like Sennheiser HD280 Pro. For mixing, you need *SPEAKERS*! Professional grade mixing cannot be done with headphones. As soon as you put them on, stereo separation becomes too extreme, so you don't get the panning right. What comes out of the left cup can't be heard in the right ear, so you start compensating by panning softer and softer. When you play it back through a stereo with speakers, the stereo picture is lost. But- now you've got too much bass, because you cranked it up so you could hear it out of a 1" speaker.-Richie