You can get Air America to play out of iTunes. One station is WKIZ out of Key West (East Coast time).
See http://www.airamericalinks.com/
Or for the iTunes streams directly (if they don't do so automatically, drop the icons of the files into iTunes),
28kbps
http://66.132.166.124:8000/listen.pls
56kbps
http://66.132.166.124:9000/listen.pls
Be aware that if you are on the west coast listening to this, it turns into a latin format music station in the afternoon, but will carry you through most of your normal west coast business hours.