I've got the following books I'm going to be putting up on ebay sometime next week, but figured I'd list them all here and if someone's interested, just make me an offer.
The Unspeakable Oath 1, 4, 5, 6, 8/9, 10, 11, 12, 13, 14/15, 16/17, 18, 19 x2, 20, 21, 22, 23
Worlds of Cthulhu 1, 2, 3, 4, 5, 6
The Book of Dark Wisdom 1, 2
Cthulhu Dark Ages
Cthulhu by Gaslight
The Golden Dawn
The London Guidebook
H.P. Lovecraft's Dunwich (Dual System)
Secrets of New Orleans
After Lovecraft: The Horror at Red Hook
A Peculiar Pentad
Nocturnum (d20 Modern Day Campaign)
Shadows of Yog-Sothoth
He Who Laughs Last (a Cthulhu Dark Scenario)
Most are in really good/like new condition and if you inquire about one that isn't, I'll let you know as well as send pictures.