If you ever wondered what Van Halen's Runnin' With the Devil sounds like without music — just David Lee Roth's shouts, screams, shrieks, exclamations, grunts, and whistles — here's your chance! How thoughtful of him to leave many uncomfortable silences in between for you to laugh your ever-lovin' ass off! Why is this funny?
When you decide to add running to your cardio routine, I think the best method is to mix walking with running and methodically cut down the walking time while increasing the running time. Eventually you will be just running and because you have taken the time to build up your overall stamina you will be ready.
Here's a play list to guide your walking / running workout.