Check out

www.live365.com

Type in Halloween and then check out all the options. Right now my favorite is ~ KCIX Lost Halloween because they play stuff that I would play at a party and would associate with Halloween but isn't typical. Like Angie Baby, etc.
A close second is ~ Halloween Dementia because they have some really funny stuff! Lots of Dr. Demento, Weird Al, Bob Rivers, etc.

HAPPY HALLOWEEN!!!
Val