It's always a matter of using the right tool for the job. I'm finishing up a 90 minute movie in which I use a bunch of Carrara material, as well as a bit of Poser (some of our alien creatures are poser people way off in the background). Some of the effects are created in Photoshop and animated in AfterEffects and placed in the scene to seem like 3D elements. Whatever will give you the effect you're looking for, make it look the best, and be most efficient is, in my opinion, the way to go. It's certainly possible to render figures in Poser and composite them in Photoshop, PSP, or AfterEffects into Carrara environments. Shadows can get kind of tricky, but here's where I think I'm really going to love the poser import -- I'll be able to import an animation from Poser into Carrara, render it with shadowcatchers, render the figure in Poser, and composite the whole thing back together in AfterEffects. I'm sure I'm going to run into a major load of problems with this approach, but, hey, it'll be fun to try. Once I'm done with the movie I'm working on now.... Anyway, thought I'd throw my opinion in for what it's worth....