No need to sneak music onto the work pc... just tune into Slacker.com when you have a break or need a little ambiance to get your work done! Another great free internet radio option.
Slacker is an excellent streaming music product. The quality of stream is very high and it's free! They also offer widgets for MySpace or your blog and will soon offer a portable player. You can create customized music stations much like Pandora, based on what you like.