I finally found a top quality active noise reduction headset for my Cessna 180 with umatched comfort and versatility at a reasonable price.  UFlyMike makes a headset adapter that converts my Bose Quietcomfort 2 headphones into the perfect ANR headset!  The adapter just plugs into the Bose headset without any modification and has the best quality noise cancelling microphone I've ever run across plus it's really light weight and comfortable.  Sound quality is exactly what you would expect from a Bose product and you can still get full stereo music through a input jack in the adapter.  I think it's the best bang for my buck in a ANR headset plus the headphones can still be used at home, the office or while traveling.  The adapter costs $195.00 and they have a website:  www.uflymike.com