Here's a trailer for XrayCat ST 1.5 for 3ds Max.
Houdini Engine for Autodesk Maya
SideFX have released Houdini Engine for Maya, with 3ds Max and Unreal versions coming soon.
CGschool - Arch-Vis Training in 3ds Max, Photoshop and V-Ray
CGschool provides world-class architectural visualization training in 3ds Max, V-Ray and Photoshop.
Max Cookie - Human Skin with VRay
Max Cookie just released a new Citizen tutorial on how to create a realistic human head using 3ds Max and V-Ray.