I'm not aware of that, but if you have a win 9x OS, you can create your own bvh files with MetaC's Dance Studio. There's some monkey motion getting it to work with Poser. But its fun. Dance Studio is out of production but I see it from time to time on Ebay. Its a set of toon characters that you can move around on the dance floor with the keyboard. Generates a bvh file. But for what you're asking about, I'm not aware of anything.