I like Sennheiser HD280's. Comfortable, good bass output, excellent isolation $100. But- listen to the nice Blue Bear. Double checking mixes with cans at mixdown can be good, as you may hear some sorts of noise, hiss, and artifacts that don't jump out of the monitors at you. However- headphones are simply not a primary listening tool for mixing, and will generally result in mixes that sound great- on a set of headphones, but which translate badly to speakers.-Richie