I've got an image of a cloudy sky on the Envirosphere.  Rendered in Vue. 

The infinite light is brighter than I usually use, because I like the glossy look the old hair shaders have under the old style lighting.  That's what I'm trying for.  Vilters says he used 75%, but when I tried it it was way too bright for me.  Hair looked okay, but the skin looked completely washed out.