Noise-cancelling headphones recommendation


Can someone please recommend an "effective" noise cancelling headphones for less than $40 using for 14-hour trans-atlantic flight. I did a search on Amazon and read the reviews, but all the lower priced noise cancelling headphones reviews are mixed at best. Please share your experiences.
pt999
I just picked up some ultimate ears super.fi 3 studio ear canal headphones and I love them. They're $99, and they work about as well as ear plugs on reducing noise. The backround noise is cut down dramatically with them on, and I find myself listening at much much lower levesl than I used to... which is a very good thing for your ears. For noise reduction realistically they work about as well as the Bose ones do even though they're passive, on top of that they cost 1/3 as much and don't sound like ass. They're certainly worth considering.

Gary
Thank you for all advices. After some searching around I purchased the Maxell HP-NC3 Lightweight Noise Canceling Headphones from buy.com for $20. I only use it for a one time trip to Asia on the airplane so hopefully the noise cancelation circuit will do its job.
I'm a big huge fan of Grado headphones and don't personally find them uncomfortable--actually, the SR60s with the full foam cups are the most comfy Grados I've tried. They're a bit forward, but they are clean and resolving enough that I take the tradeoff.

The problem with the Grados is they're the anti-noise cancelling headphone. They're open-ear so they will throw a small amount of sound out and around you, while letting some sound in. I like them on trains and planes because the environment is usually noisy enough that you won't bug anyone with them, and you can still hear a steward/ess approaching as long as you're not rockin' out too much.

Let us know how the Maxells work out. The price is certainly right!