So as you most likely know the people behind Natural Selection 2 decided to create their own engine after they found out they couldn't access parts of the rendering code they needed to change in Source and today they are showing us what it is, dynamic lighting. For a 4 man team this is really top notch work.
High Quality: (Quicktime, 24 MB)
http://www.unknownworlds.com/files/ns2/UnknownWorlds-Videocast-5.mov[/quote]