I've always associated IEM's with the stage and studio monitors for recording/mastering. They've become all the rage and I'm slightly lost on the differences I'm seeing with regards to sound coloring/response. Will most any IEM's I see work for all three tasks satisfactorily? I've got Bowers and Wilkins P7's and wanna go to something smaller, preferably over the ear too, but get a decent $200-400 price range set that can meet or exceed the headphones I got now. Suggestions among the current drops?