I can only speak for the facial animation side of things, but within that limit:
 
TAFA can load Poser models, although it currently only loads the uncompressed versions.  This may be an issue with DAZ Millennium models, or it may be fine.  The trial version can load anything that the full version can, so you could try out the trial version on the models you need to see how it will work.
 
The other people I know who use 3DS Max with TAFA export MDD (Motion Designer Data) files, and then use Point Oven Pro to import those into 3DS Max.  If I can find good documentation on Max's new XAF animation file format, I should be able to directly generate those, which would remove the Point Oven Pro requirement.
 
I'm not sure about loading the models into Max.  Certainly, underneath the Poser file is just an OBJ, which you could load, but that will lose all of the advanced surface properties (and probably a lot of the basic ones).  We do have a few Max users and Poser users, who may be able to suggest paths.
 
Mac

Hey Mac,
 
Really great work on TAFA. I got a chance to check it out this week. I'm still not sure about the Max angle, seems like I should go the LW route.
 
I saw one of the topics here where you where talking about not wanting to make plugins to 3D apps, but rather would like to use a file format. Have you given any thoughts to using .FBX from Alias. Max, Maya, Lightwave and others can read this format. I'm not a programer so this is just an un-educated comment. . .
 
-David