I have used Poser, and sometimes LifeForms, to make animations - No other animation experience, and the only other 3D software that I have experienced is Autocad.

My employer has 3D Autocad drawings that he wants me to make into an animation.

I am willing to learn new software.

The good news is that the moving objects do not have to circle each other while doing complex arm figures or the like.

The problem is Poser's limited ability to interpolate frames.

Any suggestions would be welcome.
Best,
Milt

Limited? You may choose from three types of interpolation: constant (none), linear, and spline, plus the quaternion option. You can add spline breaks, adjust spline curves via a graph, copy/delete/move keyframes, shift the values on a range of keyframes, resample or retime animations, etc. What's giving you trouble?

Carrara 4 Pro works with dwg and pz3 files both, if that helps. I don't think they've updated C4Pro to work with P6 yet though.

You CAN use Poser to animate etc from Autocad BUT But.. Autocad does not generate uvmap information, and neither does Poser do it automatically. So, unless you use Poser5 or Poser6 materials that do not use image maps, but rather procedural nodes (noise, clouds, etc) as your textures, you will have solid color materials. You need a uvmapping program, like uvmapper, ultimate unwrap3d, deep uv, etc, to pre-process your autocad model before importing it to Poser.