The SSR range of polishes are a bit old fashioned now if I'm honest although they do still perform well and are very popular. I would suggest either Gloss-It or Menzerna polishes for your DA, although the new Meguiars 205 is very good and can produce fantastic results if you know how to get the best from it...
I would say the blackfire would look great on your car as it suits dark colours extremely well. Is it flat or metalic black?
Clark