I am in the same boat as you, since my earbuds bit the dust last night.
Same old story - cable becomes disconnected at the jack and the sound is lost in one of the buds. Grrrr...It's a pure marketing scheme! They make them so flimsy on purpose - so they can only last 6 months and then you have to buy new ones.
I have a pair of Sony Walkman earbuds (cable is too short and inconvenient though)...they are 6-years-old and still work brilliantly!!!
In the past 2 years, I've been through 4 sets of Creative earbuds (the last ones were the EP-830). Excellent sound! Poor build quality.
I think I will get the same ones again...I love the fit and sound quality.
Today I'm running the stock iPod buds...My God these are awful!!! They physically hurt my ears - they don't fit properly! What were Apple thinking??? I pay $200 for a state-of-the-art device and they give me crap earbuds! A cheap, $50 Creative Zen comes with a nice set of well-fitting, good-sounding buds. Shame on you, Apple!