Long time away from here... First a broken hand, then rushing to finish all the work.
About work, here's a sample of what I'm covering in my book on Rigging and Character Animation with Blender. All exercises on the book will come with two source files: one with all necessary to start and another with the finished result for reference.
This one covers the principles of body mechanics and weight lifting. The character (Otto 2.0, soon to be released) is made using the techniques covered on the book:
And now... back to work! :D