Hi people, heard a lot about these headphones but there seems to be some division over the effectiveness of them. Can anyone make a suggestion on the best brand and model..I have seen heaps of secondhand qietcomfort qc-2 on the sellmystuff web site for $159 which seems like a good deal and I'm tempted to buy these but are the Bose headphones really as good as what people say? There are other brands I should be looking at..going to Madrid in a few months and dont wanna endue another noisy long flight without some kind of relief. Cheers Jim