Sorry for bothering you, but since you are a fan of Dark Sun and Ravenloft, I was wondering if you have you heard about the upcoming RPG setting, Obsidian Twilight? It is an OGL 3.5 setting coming out that has been described as mash-up of those two classic D&D setting. If you would like to read more about it take a look at my blog: In the Mind of a Mad Man: Obsidian Twilight. Once again, sorry bothering you.