Kung Fu tools - David Ikeda

A whole lot of (FREE) plugs in this pack - rigging stuff and other workflow helpers:

"Find SGons - Finds and selects skelegons using a text-based search similar to what you'd find in a word processor.

Replace SGons - Finds and replaces the names of skelegons using a text-based search similar to what you'd find in a word processor.

Select Child/Parent - selects child/parent skelegons. Unlike Lightwave's 'select child/parent skelegon' tools, these display a quick dialogue box when multiple children/parents exist with hotkeys to let you quickly choose which child/parent to move to next. The plugin will also activate the skelegon's associated weight map as you traverse down the skelegon tree if the weight map exists.

Make Symm - makes pairs of points symmetrical.

Symm Manager - a tool for automatically repairing symmetry in your model in a way that's more accurate than SymmRepair. Instead of just using a threshold, it finds the closest match on both sides and performs some additional operations to make sure that points aren't mismatched. It also allows you to view and select which points are asymmetrical and need repair.

SGon Manager - a tool that lets you select, find, replace, delete, and mirror groups of skelegons. When mirroring skelegons, the plugin will also flip their bank handles properly across the X axis, something which Lightwave's native mirror tool fails to do (leading to rotational inconsistencies on opposite sides). It also renames the mirrored skelegons and associated weight maps properly based on your preferred naming style which you can specify.

Weight Manager - this is a tool that lets you select, find, view, mirror, and delete groups of weight maps. It also lets you preview what points are affected by specific weight maps within varying thresholds and also allows you to view how the vertices on the opposite side will be influenced by the mirrored weight map."