I've been experimenting with a different type of moving fog/dust. You can see it in the pic below...the lighting is correct as it moves(nice side effect from alpha fading). The fog in the dark area between the two brightly lit areas is much darker, though you can't tell from this angle.

The biggest problem is framerate, though since this won't be either a 1st or 3rd person chase cam, it shouldn't matter. Depending on the final angle, I'll adjust everything if needed.

The angle in the image is pretty close, as is, though it will be farther down and to the left. The model(which is in the view though in darkness), will cast a nice long shadow when stencils get implemented.