This is a test, just working out how to do what I want for my next project. Anyway feel free to pick it apart. Also I recomend you get a copy of Blender MLT patch, it's really quick, this image took 6 min, Blender 2.71 was chugging away for over 10 mins with nowhere near as much clarity. The .blend file is set up for 2.71 so just hit F12 and watch. CPU only though.
Cheers, Wayne
Thank you so much! I searched for a volumetric light in cycles! I hope its in cycles ? :D