*2) how would you approach a walk/stalk cycle or bvh for a big cat like that, for animation?

Nulls set to a pre-existing video.  Then parent the rigging to the nulls and parent the camera to the root bone.

*Oh, LOL, I assumed you meant Poser, sop I never looked at turbosquid.
Those look like nice models, but the prices... whew

Amazing...Their prices are going up and Poser market prices are falling?

Hey Fivecat!

Have you ever had Tapioca?