Lol, I dont know about me being master, but its nice to give people that impression
ALright, drop the entire sphere with high incandescence. Keep final gather. Go into hypershade and create (under mental ray lights) a physical light with the color of the street lamp. place it at its place and watch it work.
Maybe turning global illumination on might help a whole lot too
hope that helped
Live the life you love, love the life you live