Multiple free stations with a wide range of meditation, relaxation, and healing music: ambient, nature sounds, yoga, relaxation, soft piano, and more. Includes some talks, as well.
Shoutcast.com - Nirvana
Open Heart (Healing) Meditation (guided)
http://www.shoutcast.com/shoutcast_player?stationid=826902&Genre=Meditation&ContentFlag=1&isCallInternal=&related=