I love, love, love the newest Weight Watchers dvd series called Points Plus Fitness Series with Jennifer Cohen. You do not have to belong to Weight Watchers to walk into a center and purchase it, or I believe you can even order it on line. All you need is hand weights. It also has an express workout that is ten minutes, as well as different levels from beginner to advanced.
The most important thing is to do something movement wise. Anything moving is good..extra stairs, parking further etc. I am a life long weight struggler. My original goal was to move from obese to overweight and be done, but to seriously focus on changing my lifestyle. Twenty months later I have lost over 110 pounds and am in the "normal" BMI range for the first time in my life.
Good for you for thinking about how to make it work. You can do it!