So, one of my good friends, Tony Jones (a programmer/artist at Disney Interactive) started getting into Blender, adding some features to the rigging tools that help a lot with creating much less complex rigs. Here's what he has been up to. So I'm testing his new tools and learning to rig in Blender at the same time. It's a rough road, but Tony is making it a lot easier with these tools.
I rigged this leg up in about a 30-40 min period, learning included: