Hey guys, I was wondering if anyone had any headphone suggestions for around $150? They will be used for music at the office. So total noise cancelling isn't required - I need to hear when people call me. I was looking at the Sennheiser HD 555, but I don't know if this is what I want/need... I want something for over the ear (or on ear). I want somewhat of a more rich sound instead of something that sounds too thin. Any suggestions?