Very Fast Deckplan Lighting "Tutorial" ;)

Two light sources, one at 100% brightness, the other at 50% brightness.  Both are at roughly at a 25 degree down angle from horizontal.  This picture shows it with shadow tracing turned off.  Ambient light is at 10%.  Wall diffuse is at 80%, 50% specular.  Beds are 80% diffuse, 2% specular.

This is with shadow tracing turned on for both lights.  Obviously this isn't going to work the way we want it to :)

Here shadow tracing is turned off for the 50% fill light.

Here the 100% light has it's shadow turned off, with the 50% fill doing the shadow casting.  I think I like this version the best...

Hope this helps.