I bought a Creative mp3 player. Its 1 GB, with FM, Voice recorder, FM recorder, 4 equalizer presets, and folder support.
To get it running on linux was a breeze. First, I shoved the player into the usb port, then I mounted the player on a directory that i created, /mnt/usb/
So I do:
sudo mount /dev/sda1 /mnt/usb/
And then I run nautilus as root, and just copy whatever songs I want into the player. Voila !!
I could have solved the permission issues if I wanted to, but I didn't want to :-P
Oh, before pulling out the player, remember to
sudo umount /mnt/usb
Have a nice day!