JVC HAFX40 Panasonic RP-HJE335-A Panasonic RP-HJE120-K These are ones I'm sort of considering... They'd mostly be for work while moving about and occasionally removing to hear someone speaking to me... and almost exclusively for audiobook listening. I'm actually more concerned with comfort and it staying in my ear than sound quality. One problem I have with my current IEMs is they sort of flop about when not in my ear (clipped to my chest)... dunno if there's any solution for that. I'd like to keep it under $20 unless there's a compelling reason not to. Thanks for your help!