Since you have $100 dollars to spend, Bose In-ear headphones are awesome. I have a set myself, and I am very pleased with them. The bass and the lower tones are heard, unlike some other headphones. Here's the link.
I don't know if you have a Bose store around, but if you do, I think they have demos of certain headphones. If you have a REALLY big wallet, the noise-cancelling ones are even better.
I don't know if you have a Bose store around, but if you do, I think they have demos of certain headphones. If you have a REALLY big wallet, the noise-cancelling ones are even better.