I use Relaxus to get relaxation and meditation now. It is very useful. Just the kind of relaxing music i have sought for. There are 16 tunes in Relaxus. Nature's sound, meditation tunes, and brainwave tunes are available in it. It is a good way to listen to it before going to sleep. Amazing.

itunes - podcasts
look up following:
white noise meditation
guided meditation
new zealand nature sounds
i also like enya, enigma, nature sounds, and a great guided meditation but can't remember it. rikki I think

Sometimes trance/******t music helps to consentrate to the meditation, if mind is not peacefull. Normally I don't need anything else than do not be disturbed during meditation.