I've been and found one of my source books for Call of Cthulhu: H.P Lovecraft's Dreamlands. It's an old one, It's from 1986!. I didn't buy it that long ago though, It' been in a games shop. It's actually the same rules for Cthulhu, more or less I used to use when I first started doing It. I'm trying to get time to work on a lot more Painting and Drawing at home, but I admit I really enjoy technical stuff as well.