Jason ,
The beauty of technology! Having another "voice" in the classroom via video clip is a great way to keep and hold interest. My library also has hundreds of DVD's that are related to my subject area, and serve a similar purpose. With either, one caution I've found is if they're too long, students will still get fidgety (at times). Breaking up presented material into shorter segments seems to help keep student attention a bit better.
Barry Westling