Shape Magazine has an excellent plyometrics workout, suitable for beginners. You can view the workout by clicking here
As with any exercise, if done improperly, injury can result. Make sure to use proper form, not to overextend, and if an exercise is beyond your difficulty level, work with an experienced trainer or coach to modify the move to your ability. As well, make sure to give your body periods of rest (1 - 2 days) between plyometric exercise sessions.
What else can I say? Interested in plyometrics? Hop to it!