Most digital cameras will take video until you fill their memory card.
The (relatively) new Casio EX-F1 digital camcorder (costs around $600) will also take video at a variety of frame rates. I believe up to 1200 fps. That sounds fun. Hope to get one. If you are looking into adding cameras or camcorders, this might factor into your decision.
Education comes from within; you get it by struggle and effort and thought. Napoleon Hill
One had to be a Newton to notice that the moon is falling, when everyone sees that it doesn't fall. Paul Valéry