Ok ... good idea with the DVD's and the Gazelle. Just get into the habit of doing some of each 4 or 6 times a week. Although 30 or 45 minutes several times a week are often recommended, anything you do over and above your normal activities is a good start.
And you may be pleasantly surprised by how that, and eating in moderation, will get you started.
If you liked WW, there are good supportive threads here to help. Just let us know if you have any trouble finding them.
Eat good food. Move yourself. Lift something.
You'll be surprised how much you don't miss grain.