I tried smoke in 2.65 and I had one problem I could find how to set end of smoke without using particles.I still have to learnt how to tweak smoke to look as I want .I create basic environment and use free sci fi textures I got while ago on this site http://eipixgd.blogspot.co.uk/2009/12/sci-fi-texture-pack.html there is link for short animation http://www.youtube.com/watch?v=wn2z3ePcdyw&feature=share&list=UUC8wDb1-yNve15WoKC37Shw
