Rigging a hand

In the thread, Dan Ablan suggests:

"Start at the wrist. Then, place one for the base of the hand, another for the palm. From the palm, branch out to the first finger. Build each finger hierarchy from the palm bone.

If you're using LW8, run IK Boost to animate the fingers. Lock the base wrist bone.

The other thing you might want to check is weighting on the fingers. Since the fingers are close together, the bones can influence geometry near them. Weighting controls the bone's influence to what you specify."