Big fan of Richer Sounds, I've bought nearly all my stuff from their over the years, for a couple of reasons. They stock stuff which is either end of line or a new model has come out, so some extremely big bang for your buck can be had. Their extended warranty is the only extended cover of its kind I would even look at. All other cover is a rip off, not this; free servicing, you get a free loaner unit, lasts for 5 years, plus other stuff all for about £10 or 10% - worth looking at if you do shop there, it's called Supercare. Customer service and staff knowledability in my many experiences have been great, non pushy sales team too. This isn't like going to get "advice" at PC world!
As for the actual headphones, not tried the Bose, but I did recently buy some headphones which I love. They're not noise cancelling, but they are noise isolating and I put them in at work all the time just to drown out the racket, you just need to trial the various buds which come with them for the snuggest fit. Best of all the sound is superb, particularly the soundstage, in my opinion. But buying headphones (like all hifi) is very personal, the sound I like, you might hate and vice versa, so I'd encourage you to demo any headphones you're thinking of spending decent money on. Try and take your own music device and listen to familiar music when you demo.
For what it's worth, I went for these, there also some other suggestions in the thread too. http://www.350z-uk.com/topic/71336-need-headphones-look-no-further-get-these-sony-xba4ip/
Good luck, hope you find something you like as much as I like mine.