BodyRock Bootcamp - Melissa Bender - I'm loving her website! She's got 30 day challenges, 10 week boot camps workouts & even 12 week bikini comp workouts all lined out with video & instruction. All doable from home too! No fancy equipment necessary.
Melissa Bender Fitness: 10 Minute Bikini Body Toning Workout. HIIT, interval workout with dumbbells, plus over 375 other free home workout videos, recipes and tips for healthy living.
20 Minute Boot Camp: Full Body Workout (No Equipment) - YouTube