Winsor Pilates is probably the most famous of Pilates brands. Slimming Pilates is one of Mari Winsors' latest efforts. This workout includes the "accelerator" a resistance band and light weight system that Mari Winsor developed.
More about Winsor Pilates at About.com:
DVD Review: Slimming Pilates
DVD Review: Winsor Pilates Super Sculpting
What is Winsor Pilates?