I have a list of links to sites that have the wav (or say they do), for some of the more common chants I've heard.  
I have not checked them and I take no responsibility for them.
 

Sites with several Pagan songs/Chants:
http://www.geocities.com/brhiadwen/chants.html
http://www.thegodsgrove.com/sounds.htm
http://www.soulrebels.com/beth/chants.html
http://www.witchscauldron.net/cauldron/chants.htm
http://www.youtube.com

"Isis, Astarte, Diana, Hecate, Demeter, Kali, Inanna"

You can listen this song here:
http://www.soulrebels.com/beth/isis.html
http://www.youtube.com/watch?v=BDSu0-qDFQ8

"We are the flow, We are the ebb
We are the weavers, We are the web

We are the weavers, We are the web
We are the spyders, We are the thread

We are the spyders, We are the thread
We are the witches,  Back from the dead"
 

You can listen this song here:
http://www.en-chant-ment.ca/chants.html#F

"We all come from the Goddess,
And to her we shall return,
Like a drop of rain, Flowing to the ocean"
 

You can listen this song here:
http://www.youtube.com/watch?v=WoVNveJFTig
http://www.youtube.com/watch?v=Dlvv1r7E_SU
http://members.tripod.com/~SilverDragonWolf/wav.htm
http://www.soulrebels.com/beth/hoofhorn.html
http://www.witchscauldron.net/cauldron/chants.htm

"We all come from the Sun God (Horned God),
And to him we shall return,
Like a spark of flame, rising to the heavens"

You can listen this song here:
http://www.witchscauldron.net/cauldron/chants.htm

"Earth my body
Water my blood
Air my breath
And fire my spirit"

You can listen this song here:
http://www.soulrebels.com/beth/earthmybody.html
http://www.witchscauldron.net/cauldron/chants.htm

"May the Circle be Open, but unbroken,
May the peace of the Goddess, be ever in your heart.
Merry meet, and merry part, and merry meet again."
 

You can listen this song here:
http://www.youtube.com/watch?v=jaV4xwDFsng
http://www.geocities.com/brhiadwen/chants.html
http://members.tripod.com/~SilverDragonWolf/wav.htm