iToo Software have released version 2.2 of their RailClone plug-in for 3ds Max.
Terrain for 3ds Max
You can generate landscapes from real world elevation data with the Terrain plugin for 3ds Max.
FumeFX 3.0 - Released
After two years in development, Sitni Sati have released FumeFX 3.0 for 3ds Max.
Slib | Leuchtkraft
Slib | Leuchtkraft is a plug-in for Maya that allows the creation of lighting by painting highlights on objects.