There are plenty of work outs on the market. Finding the top ones can be hard. Beachbody is a great fitness software company. They have many of the leading workouts.
Insanity is one of the top workouts on the market. This is a 60 day program and gets you into the best shape of your life. Shaun T, the trainer, works you with max interval training. This is super hard and intense work outs with a short period.
P90X is another intense workout; this one is a 90 day program. Want more? Click here. There is weight training and work outs that tone the whole body.
Another work out that gets plenty of buzz, this is the Turbo Jam program. There is regular Turbo Jam and Turbo Fire. The Turbo Fire is a more intense version of Turbo Jam.
Whichever, program you choose to do make sure that it is the right one, for your body? Make sure that it is one that you can have fun doing.