I would honestly recommend going to eBay to look for some of the "system" dvd sets-the kinds that they sell you on the informercials. If you want them to work, you have to WORK...and there are lots of people who do theirs once or twice, and after realizing it IS a workout...then they sell them.
If you really want an infomercial set...compare the price of buying it new through them directly, and then you know what would be a good deal on eBay.
I personally don't use any of the infomercial "sets". Most of them are simply cardio, strength training, or Pilates workouts-nothing special about them compared to workout dvds that you would buy on Amazon/Collage Video, or even Wal-Mart or Target.
Winsor Pilates, and some of the others even sell single dvds now at Target and Best Buy and other stores.