No rotation help, but a few workouts came to mind. Winsor Pilates Buns & Thighs; it's short, effective, and you are on the floor the whole time. Classical Stretch- the Aging Backwards for Beginners workouts. Maybe belly dance for low impact cardio and something different. Yoga- for both strength and relaxation.
Someone had posted about a rotation alternating the Ballet Beautiful Total Body and Body Blast DVDs. I think she did the entire DVDs, not segments, and had good lower body results.
The rotation in the link says to do Ballet Beautiful workouts 5-6 days/week. It suggests doing:
Classic 60-Min/Total Body Workout 3 days/week
Blast Series 2-3 days/week
Low impact cardio (about 30 min) 3 days/week
Mid to high impact cardio 1 day/week
Rest day 1 day/week
MHB says to do what you can, aiming for at least 3 hours a week of workouts. If you can't do the entire DVD, do a segment or two as time allows (or as you build strength and endurance). MHB has several DVDs, so if you have a few and alternate, you shouldn't get too bored.
Good luck and let us know if you find a rotation that works for you