cool cyborg spider rig, free at Creative Crash and very good for learning to animate multi-legged creatures.
The zoologists among you will spot that real spiders have eight legs, not six, but this is nonetheless a cool rig. It works well and is simple but effective, with easy-to-understand controls.
Cyborg Spider was created by the very talented Xiong Lin and is available for free download - for student and non-commercial use.
To watch a video of how the rig works, watch this video below.
cyborg rig from Xiong Lin on Vimeo.
And to download Cyborg Spider, follow this link.