That's super fun!
I just made a thing to show off GJ with Magic to get some sweet effects on top of those gifs
http://www.twitch.tv/noyzbotchip/v/16237968?t=3m55s (if the video isn't there anymore sorry, I'll upload to dailymotion or vimeo or something)
This program is really nice! Gotta learn how to make .gifs that don't suck now.
This is way too much fun.
I've also used gif brewery in the past. Would recommend if you're trying to turn vids into gifs.