I recently obtained a pair of Sennheiser PXC 300's which I must say I am fairly impressed with. As was said above, they do well at cancelling mid-range noise, but are not as great with voices etc. That being said, last Sunday I was flying home and had a screaming baby in the seat just behind me. Putting on the Senns and listening to the in-flight entertainment just about completely drowned out said infant to the point that I was able to fall asleep, just fantastic. They also work very well with my NH1, so I must say I'm hooked. The only drawback I have seen with the Senn's are they are not completely enclosed like the Bose ones, but a damn sight cheaper at around 50 pounds Sterling off Ebay. HTH Tony
