I used a combination these two tutorials:

http://gizmodo.com/5941436/how-to-make-a-gif-in-five-easy-steps

http://www.makeuseof.com/tag/turn-movie-animated-gif-windows-movie-maker/

I already know how to make animated gifs in Photoshop, so once I learned how to cut the video down to a few seconds and import it it was a cake walk from there.