Having been reading a LOT of Stross I have been stealing with arms and legs from his Laundry book especially when ever it came to anything dealing with deamons and tech, lets face it giant squid man horrors from beyond are cool. Preordering the Fuller Memorandum I came across another company doing a game based on this world and I plan to buy it,m if for nothing else some good inspiration as to how byzantine secret organizations work and computational demonology.
What I was wondering is this... Where do you guys get your deamon mythos from, do you just use the "vanilla" wh40k stuff or do you add your own cultural twists? Either from folklore, books and so on.