I'm thinking about upgrading my headset to noise canceling. I just got word of a webinar put on by Sennheiser about hearing preservation for pilots. I wear hearing aids and although it might be a little late for me, I'm sure there might be some good information to be learned. The webinar is on Wednesday between 8-9pm EST. The link is http://socialflight.enterthemeeting.com/m/KBKBQ99E if anyone else is interested. If nothing else, it's just another way of supporting general aviation.