3D Animation: What is good (cheap-ish) motion capture software?

You could use http://brekel.com/ ProBody and ProFace for this. You need to have a Kinect though. Its cheaper than the Ipisoft software but it has it limitations (on this day) one Kinect sensor. But it is specialized in using the Kinect so it works very wel. With Ipisoft you can use multiple sensors, and your not limited to the Kinect Sensor. I think you also can use sensors like the Playstation Eye and other motion controllers.

The 3D DCC suite 'Blender 3D' is phenomenal for motion tracking. And it's free. For an example of quality, look up the short film 'tears of steel' to see how good it is. But the best part of Blender is that it has 3D modeling and video compositing built in, so a user can track, build, integrate and export a product without leaving the software. I would suggest it for anyone who doesn't already have production level software, and anyone who doesn't want to spend $300. Also, Blender has an amazing community and a library of addons, so there's never a shortage of documentation. Don't assume the 'free' price tag is a gimmick. It is ACTAULLY free, no hidden subscription, no ads and no trials; it's community driven. And, don't assume it's a one trick pony; Blender can do almost anything you could think of in the realm of motion tracking. I hope you like it.