just stumbled across spawn.com and found some nice thingies.
there are toys of superheros, dragons, army troops and countless other fun stuff.
the cool thing is: there are quicktime vr movies of the toys, that allow you to view them 360°.
I think this is an interesting source for action poses (drawing/painting from life is better, though, but not everybody is able to order one of these, let alone ALL OF THEM )
they're quite small though, and the lighting is rather dark on many.
still helpful I guess!
some are here: http://www.spawn.com/features/monsters4/