If that is not enough for you, head on over to the NPR station WAMU in Washington D.C. and look up their program The Big Broadcast for October 30, 2011. Hurry now, it'll be gone with the week as there is a new broadcast every Sunday and they do not archive the shows. The Big Broadcast is old time radio and the shows are well worth a late night listen.
I became hooked on this sort of thing years ago as a teen when a local radio station in Washington, D.C., WMAL, broadcast a Halloween night show called Washington Revisited, in which host, narrator, and journalist John Alexander took you on a haunting tour of the various and sundry ghosts inhabiting the nation's capital. Complete with sound effects, this was a wonderful, spooky hour of radio that filled the mind with all sorts of interesting images in the dead of night.
Happy Halloween. BWA HA HA!!!