Earphones / Headphones: Where to try, what to buy?

Right, all you guys saying you can't hear anything on the road while listening to music, give it a go. Even when I have my music at full volume, I can still hear cars coming up behind me.

I was'nt saying that. I was just pointing out why you need to be more aware of things behind you when your cycling, in comparision with driving.

I went for a ride with my Ipod a couple of weeks ago as it happens. Figured snow riding, on a quite out of town road, in the dark, with some tunes.....nice.

Hit some ice moguls on a steep hill, which started throughing the bike all over the place (was going far too fast), just as my Ipod saw fit to select some Prodigy.