it would be indeed possible even with the pc as it is now. poser spends half of it's resources to keep up that ridiculous environment. an average pc has more horsepower in it then xbox and better graphic chip, i'm sure that with an optimised code (both system and application) it could do miracles... trouble is, that pc has to do other jobs in the same time and xbox doesn't. unreal2 engine for the pc should look evenn better...