One more quick thing,
I have found that, to mask the voices, I listen to music either on my stereo or on my Ipod with earphones. It takes my mind into a happier demention and I lose "contact" with what I was hearing before.In the quiet of the night, if nothing else, then I go down a list of songs I love and sing them in my head, over and over again. Sing out loud if it helps. Music can heal the soul in many different ways. Give it a shot!

Out to lunch