You can get Vicky 2 or Vicky 3 to use in Poser 4. You don't need the Pro Pack to use those figures (or Mike or Stephanie, etc. and that includes all the animals, fish, birds, etc. too) There is quite a debate whether or not to get Vicky 2 or Vicky 3. Vicky 3 looks better but Vicky 2 has (right now) more stuff. Vicky 3 will catch up, I'm sure, and she has the versatility of being able to morph into a male. I'd check out what people are doing with the figures and see what suits your needs. Keep on having fun.