I am currently using Insanity to get in shape. I also own P90X, Turbo Jam, Turbo Fire and Rev Abs. You don’t need expensive programs to get into shape. I’ve made a list of places you can get free ones!
If you have Netflix check out their “Sports & Fitness” section. They have some you can watch instantly and others you have to get by mail. There is something for everyone on there.
If you have cable there should be some workout programs for free in your “on demand” section. I don’t personally have cable, but I know my mom has access to workouts through Comcast.
You can also search Youtube for workouts. My current favorite is Bob Harper’s page. I have also heard a lot of positive reviews of Zuzana of Bodyrock.tv. I don’t personally use her workouts, but she uses good form and technique.
If you live close to a gym there are many opportunities to score free workouts. Most gyms offer a trial week or a free class. Search online to see what your local gym(s) offer.
If you know of other free workouts please send them to my “ask”!