This program is available from a variety of sources, including Amazon. It's about what motivates you and works for you. If you enjoy this, can afford it, and will do it, there you go. Keeping it fun is key for me personally. I have lots (and lots) of different workouts on DVD plus a Total Gym. A Google search by the DVD name will pop up lots of choices for purchase.
All the best in whatever you choose to do. Just make it sustainable.