If anyone is interested in tinkering at home with their fit the following seems to get you some basic information:
Tracker (Free Video Analysis and Modeling Software for Physics)
http://www.cabrillo.edu/~dbrown/tracker/
I checked it against a couple photos that had been used as part of the F.I.S.T. articles (Slowman, I hope you don’t mind me using them as a test case, just wanted something to measure against to test it’s accuracy) and it seems to work fairly well. The measured hip angle was 96.6*.
http://i43.tinypic.com/2d747q.jpg
http://i39.tinypic.com/o9le2h.jpg
Again, this seems like it could be used at home for tinkering. Angles seem to vary depending upon line/pixel placement, but fairly accurate if the user knows what points to measure along with everything else that may be required to ensure the input is correct.