you want good earbuds?
how about the best earbuds? They are a little pricey, but well worth it:
www.etymotic.com
Etymotic ER4-P (the p- model has the best bass response)
I have a pair, and they are so good at excluding ambient sound that they are nearly as good as noise cancelling headphones. I love them. They come with rubber triple-gasket ear fittings, as well as the squishy-foam style (and numerous replacements), as well as other accessories. And... they are hand made!
Listed at around $300, but I found mine for just over $200.
I swear: they kick ass. (for critical listening, audio engineers, studio, musicians, audiophiles.
You won't regret the purchase.