Used exactly as in Stewer's tutorial, the probelight node won't work (properly) with lights. However, if you plug it into the reflection input, and check "multiply through lights", it can be combined with strategic light setups to produce nice results while still allowing for shadows. Back to the original subject, I would rather see actual GI within Poser, or else direct render plugins. YafRay, KRay, and Virtualight are three excellent candidates for plugin writers to look at. Even if eFrontier decided to sell just the Shade renderer as an add-on for Poser 6, that would be cool, though it would be nice if it were included.