The Skeleton Rig:

The aim was to create a rig that was as easy to animate as possible but still give as much control as possible.  In my opinion - for the amount of control you have, this is probably the easiest rig to animate with in 3ds max.

Rig features:

• Full IK/FK blending on the arms and legs.
• Simple yet extremely versatile spine and head setups.
• Squash and stretch parameters on all parts of the body.
• Curved limb parameters.
• Twisting and volume preserving bones on all limbs.
• Soft IK extensions on all limbs to reduce popping.
• IK/FK snappping tools.
• Auto-hiding IK/FK limb controls.
• Finger controls with preset poses.
• Character pipeline tools for adding extra objects, defining a prefix, assuming skin pose, select all and delete all rig objects.

Also available is a script to resize the skeleton rig to any size you wish.

Resizing script features:

• Full resizing of all rig parts to fit any bipedal character.
• Twist joint number options for smoother deformation twisting.
• Loading and saving of rig dimensions.
• Script for saving dimensions from older skeleton rig versions.

The resizing script is also available from http://www.bradnoble.net/rigging/skeleton_rig.html.