Have you checked the recipe database? or http://www.google.com/search?hl=en&safe=off&client=firefox-a&rls=org.mozilla%3Aen-GB%3Aofficial&hs=xzP&q=raspberry+stout+recipe&btnG=Search
The AHS Raspberry Chocolate Stout is currently the special at AustinHomebrew. I haven't brewed it but I tried someone's at the last club meeting brewed from this kit. It was good.