just had a look at your Store , Models look good and sure would be worth Rigging some of these , could increase the interests of Poser/DS users. the way of construction of these models would nor require hard rigging , you will just have to get used to the positioning of the center's , just a little training for the eyes :)

it gets a little more complicated when rigging Hydraulic Parts that have to fallow the articulations , Not sure but I think Darkedge made a Tutorial for such a matter. you see these type of Articulations in the Cyber Bot V4 M4 that are well done.

Hydraulic Animation