Etymotic ER-6i Isolator (white)

Pros: Superb sound quality, huge noise-reduction, look stylish with iPods and other MP3 players, long cord, comfortable even for long periods of use.

Cons: Cord and earbuds feel fragile, the included case is poor.

Summary: I consider myself an audiophile and I can honestly say that he ER-6i's are the some best sounding headphones I have ever heard. The fit (I use the foam eartips) is superb and very comfortable.
My only caveat with the ER-6i's is that I sometimes feel that I have to be extremely careful with them since they appear so fragile. The fact that the included case is nothing more than a small velcro pouch that requires you to cram the earbuds in does not help this issue. Overall, though, I highly recommend the ER-6i's.