To the folks who say you won't hear the difference:
To the people that actually care about quality hi-fi and listening to their music how it is meant to be heard, well I can tell you that I'd recommend Shure whole heartedly. I've had my E3C now for a few months, and they're superb. I wear them down the gym/jogging/motorbike and they've never let me down once:
Gym, I can't hear any outside sounds at all, not the w4nkers who feel compelled to scream through every rep, not the bunch of fools in the corner who just joined up, and not the crappy music played through the speakers 24/7. They provide me with a perfect seal meaning all I hear is the music, and within the soundstage it's meant to be heard in, no muddy unclear distorted bass here - just perfectly balanced hi-fi with superb treble/bass seperation.
Motorbike, well again I listen to them everyday on my commute as it's better than listening to wind noise through ear plugs. I can just make out the exhaust note when I hit 6-8k. They cut out 90%+ of the wind/engine/external noise. But I can still make out emergency sirens If needs be.
Jogging, well my old Senns/Sony used to drop out of my ears every few hundred yards which became progressly worse as my ears got sweaty. These babies stay where I put them - theres a choice of like 5 different nozzle buds so you can choose which ones provide the best seal for you in each circumstance (many people find the foamies the best) but I use the small rubber ones and they've great.
Recommended, if you need a good means of listening to your music on the move i'd not hesitate to buy them again.
The other thing is there is a 2 year warranty on them, so if ANYTHING breaks, you send them your proof of purchase (bank statement/receipt/cc) and they will send you some brand new phones out inside of a week, no questions asked.
I'd go for the E3C personally @ £60 on Amazon atm they're great value!
http://www.amazon.co.uk/dp/B0001NNLHK/?tag=cliospnet01-21
