The Koss PortaPro is one of the most well-regarded lightweight headphones around. In fact, they just picked up a Great Buy award at goodsound.com. Just want to tell you guys that it's now available at koss.com at half price....that's right, half of the MSRP of US$50.00. Just use coupon code 617A when ordering and the discount will apply. I just ordered a pair myself.