I'm not a Zaxwerks user yet though the Invigorator and Animator products look interesting. I do have a specific question about there capabilities. If I import a model file, can I key-frame / animate individual parts of the model ? Example would be a human figure. Could I animate say the arm rising, head turning, etc ?
The short answer is no. That kind of animating requires parenting, inverse kinematics and other features you'll find in apps like Lightwave, Maya, Cinema, ElectricImage, etc.
Invigorator and ProAnimator are designed for other kinds of 3D animation - specifically logo and type animation. Of course that's just the beginning, but as always, choose the best tool for the job. No one tool will be the best for every job.