Dartfish offers a free one-month trial to anyone.
My son downloaded Dartfish to see how easy it was to use for a trebuchet contest for NH Techfest on November 14th, 2009 (
www.nhtechfest.org).
It is truly sick...
Within an hour or two, we had useful technical data of the physics of a trebuchet.
http://www.youtube.com/watch?v=UnrALqkMFgM
As you can see, it even works with low-res video from a Blackberry.
We will get DV quality video by Wednesday.
I hope they pick team 241 as one of the 50 teams.