I have a creative zen.

no stupid software if you don't want it

mine is simple.. about 14 hours on a AAA battery
1gig ram

will rip audio internally (import autio from virtually any device)

built in microphone to do the same

fm tuner

std usb interface

you can get external fm transmitters for any device with 3.5(?)mm jacks
if you have line in options on your stereo, you could use that.. I plan on doing that in mine when I get a chance.