Quote - Not sure if this is the answer you are looking for, but have you tried LuxRenders Bloom effect (in the Lens Effects Panel).

Yeah... I don't have any concerns around that.  Bloom and halo are easy to do. (Although I'm curous to know if it only affects the light layers that are enabled.  I did in post work on this render.)

http://www.renderosity.com/mod/gallery/index.php?image_id=2420524

I composited this together as three separate layers in postwork; Character lights, background including signs (had a glow effect), and sky.  When I did a glow to the whole render it just seemed to overwhelm it.