Squash and Stretch Tutuorial

Stretch rigging:

This tutorial guides the user through setting up a squash and stretch expression, and an attribute that can control the degree of stretchiness. It goes step by step through the math behind expressions, allowing the user to understand why the expression enables this essential of cartoon animation.

I am definitely interested in throwing this on Sleasel. I'll have to do it after I get the rest of the rig set up, but they say this will work over most any preexisting IK set.

Rigging Logistics

Just stumbled across these tutorials/threads in my research - I'm collecting them and thought I'd share them here to run them by you guys. Some of them seem complicated/over my head, and I was hoping you could let me know if they're feasible options.

Stretchy Spines:
http://www.darksuit.com/tutorials/StretchSpine.html

(or, apparently, I can just scale the bones mathematically - check out the last post):
http://forums.cgsociety.org/showthread.php?f=88&t=821678

Spline IK for the Tail:
http://www.animationartist.com/2003/08_aug/tutorials/softbody_tutorial.htm