The Shure’s are superb, honestly, and if you want to use them with an iPhone or Touch you can get an alternative cable with remote and mic, so you can use Shazam on a Touch. The plug is a 45 degree one on the remote lead, which is good when the phone sits on its side in your pocket.
The SuperFi 3 Studios can be got for around the £50-60 mark on eBay, but you have to go through the whole bidding thing, and they’re pretty popular.
Replaceable cables at these prices is fairly new, it used to be from around £250 upwards, and it’s really only on IEM’s,
In-Ear Monitors, for stage and studio use. Does mean the sound quality is top-notch, mind.
You won’t go wrong with the 215’s, and the shape means they sit fairly flat against your ears, so you can have your head on a pillow fairly comfortably.
I’ve got the clear ones, but the transparent black is pretty cool looking.