I want to use motion capture to save me time creating fight poses.  Since I'm not creating animations I don't need a top-end system.  Any recommendations out there for a system that is relatively inexpensive and reliable?  

I've tried FastMoCap for the Mac and Kinect and found when running OS 10.6.8 it crashes within a  minute or two of launch, so please include the operation system you're running and any hardware considerations that matter.  

Thanks.