Get bored easily? Then Prevention's Personal Training with Chris Freytag is one for your collection. There is a whole menu of different workouts that can be mixed and matched, depending on your goal (lose weight, overall toning, specific body-part toning, etc.), your time available, and your mood. Beginners can take it easy with, say, one of the cardio workouts and one or two of the spot-toning workouts. More advanced exercisers can add on any of several chunks of toning, sculpting, and cardio. The moves are, in general, rather basic--squats, lunges, quick-moving reps in the cardio routines, etc., but those of us who weren't born to be in the Rockettes appreciate the simpler choreography. You'll need light hand weights (or slightly heavier for more of a challenge) and a workout mat or thick carpet that floor work. The "legs & butt workout" will, if you focus, really make itself felt the next day, and that's a great thing. Freytag is, as usual, an approachable and inspiring fitness leader. Still not feeling it? Add one more chunk of workout to your routine, and you'll have your heart rate in its target zone. --A.T. Hurley