I've bought a few tutorial sets from the big guys including an early production from a major player I won't mention.

They aren't worth the money.

In my real job I prepare graphics for online training and work for a couple of real, honest-to-goodness training development folks.   I've learned a LOT about what to expect from training packages and all the ones I've paid for have fallen a long way off the mark.   All the material I've downloaded has large (or small but important) gaps or make large leaps of assumed knowledge leaving one wondering where the heck "that" came from.

I've gotten used to this from learning other software via online tuts and and recommend that one adopts a 'driftnet' approach to grabbing lessons.  Like a driftnet indiscriminately raping the oceans by catching everything that swims,  suck up everything you find on the subject, hoping that they will together, provide a reasonably complete set of instructions.  You may even find some gems.  I've become a huge fan of this site... http://drgeep.com/    It's a bit messy and some lessons are duplicated in two spots.  The navigation is a teensy bit odd but my suffering snot suckers!...it has a ton of excellent material.  While seemingly simplistic and childish, the lessons cover the material thoroughly.  As an example, in none of the two books I'd bought, none of the hundreds of tutorials I'd downloaded, and NOT anywhere in the actual manual supplied with Poser is one taught the difference between a prop, figure and a body.  I couldn't even find what the 'hand' icon meant in the hierarchy editor.  Dr Geep filled me in quickly.  I can't say enough about his tutorials. 

...and no, I'm not trying to suck up Doc.