I am a technotard too, and I honestly cannot remember the last time I chose to listen to music over headphones . . . and with that said . . . is there no worry about killing batteries quickly, both on the headphones and the phone itself?
I might consider just getting a dedicated mp3 player, I mean they're super cheap right? That way you won't kill the phone battery so quickly, and the lifespan of said battery. Again, I'm talking outta my butt, so I'm ready for the smackdown from somebody.
Then, according to BSA, these headphones right here are supposed to be a great value at $26. When your coworkers see you donning Sennheisers, they'll know who to ask for audio advice.
http://forums.audioholics.com/forums/showthread.php?t=72532