Another option might be Best Buy's 8GB Insignia Pilot. I'd give you a link, but BB's website seems to be b0rked at the moment. I've had one of these since last Christmas, and I really like it.
* 8GB built-in storage
* SDHC slot for additional storage space
- I'm using an 8GB A-Data Turbo card -
$30+shipping at newegg - in it right now; works great
-the Insignia treats the card as an extension of the built-in space, so putting the player on 'random' shuffles
all songs on the player, regardless of where they're stored. Creative's Zen doesn't do this; you have to play music from the built in storage
or from the card; you can't combine the two.
* FM radio
* built-in bluetooth transmitter
* user-replaceable battery
* 2 headphone jacks
* computer sees player as a simple USB storage drive - no special software needed.
* uses a standard mini-usb connection
My only complaint would probably be that the headphone signal can be a bit weak. With actual headphones that's not a problem, but if you connect the player to an 'aux in' on a home stereo or vehicle head unit, you'll have to crank the volume a bit. Don't forget when you disconnect the player, or you'll blow your ears out when you switch back to the radio or CD player
EDIT: BB's site seems to be working now. I forgot about the price though: if you want to stay close to $100, you'll have to go with the
4GB version; the 8GB is closer to $150. There might be a coupon floating around that you could use on one of these to drop the price a bit, too.
Nathan