Are you looking for in ear or normal?
I've always used Bose OE2's and they are amazing! Sound is perfect! Treble is great and the bass is really good. I've used others and nothing has been close. Little above what you're wanting to spend as they're £130-150ish, but worth it.
Have a pair of these and they are awesome for a pair of in ear headphones: http://www.amazon.co.uk/gp/aw/d/B0051UOUNM/ref=mp_s_a_1_7?qid=1379709489&sr=8-7&pi=AC_SX110_SY165