my result from Davids tut. lots of messing with settings to get this result but i think its close to how i like it.
Didnt bake out a full animation yet but was mainly trying to get the look i wanted.
i added 2 more textures one for color and one for a mask to blend the color out from the main smoke flow. lots of tweaking, also i turned off initial velocity on the smoke flow it seemed to give nicer result. and at end of the tut i also scaled down everything in the scene some to help with the lag big domains cause. cya