Any exercise/workout DVD recommendations?

As some of you may know, I was axed to leave my job last week. So, first I want to take a little "me time" - before venturing out in the work world again. Part of that is a goal to lose 15 or so pounds to help me feel better about myself (and force me to go shopping for new work clothes ;) ). I have a treadmill that I'm now using again, but I'd like to supplement that with a good workout DVD. Any recommendations?

btw - I'm 50, so I'm not looking for something high powered.

Thanks Everyone. :D :D

*BUMP*
and i'm looking for advice like this too, soooo, share!, please?

There are video for it but I love a class... Jazzercise. I am...let's say "close to your age" and have done Jazzercise for over 15 years. I pay $33.00 per month for as many classes as I want to attend.

But there are Jazzercise videos. Also on some cable stations....