...Skullcandy hooked me up with a set of the Full Metal Jacket for iPhone earbuds a few weeks ago and they kick ass! The sound is great and they come with 3 different ear buds as well as foam ones so they fit so snuggly that even with only 1 side in your earhole the music stays nice and clear whilst you listen for police cars coming up behind you to bust your fun-loving ass for not having reflectors on your peddles. The best thing about the iPhone model is that they have a built in mic on the cable so I can safely and easily answer the phone and chat whilst trackstanding at the lights which I have not had the need to do yet but one day it's going to happen and I will look flipping amazing, haha. The mic has a play/pause/skip button too which turns the iPhone into a usable iPod when you are on the bike.
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If you have an iPhone (or a Blackberry) then buy yourself a set of these if you wanna listen to music and talk whilst riding cause I don't think you'll find anything better out there. You can get them from nucleus-online.com cheaper than anywhere else. Be warned though that I do work there so if you phone up you'll have to talk to me :-p (Note: we stock the whole Skullcandy range at great prices, hehe).
If you do actually order something from Nucleus send an e-mail along with your order saying you came from here and I'll stick a Fixed Gear Wales spoke card in the package for you.