I just purchased, through MacHeist, KineMac a 3d modeling software package….  Looks good, and quite useful…
But of course, now I\’m looking for 3d models (.obj & 3ds) for it…And while this isn\’t 3d models, it\’s the next best thing with 3d model sheets (drawn 3d views of objects).  Anime Model Sheets.
Take a look at the MacHeist deal, and see if it has anything your interested in..