Hi - I am a full time working mom with no time to go to a gym, so I know where u are coming from!
We got an elliptical machine in our basement as well as some free weights. This allows me to go downstairs to do my workout during naptimes or before everyone wakes up.
As far as videos, I really like the Turbo Jam videos. I had asked a similar question a few weeks ago, and many people had recommended me to get Turbo Jam, which is lead by Chalene Johnson.
By the way, I also did Tae Bo, but I find it a bit boring compared to Turbo Jam's addicting music, fun dance moves, and the high I feel afterwards. Chalene is great and is not annoying like some instructors can be. The moves are so much fun and energetic to do, that I find myself doing them around the house too! They sell the Turbo Jam videos on their beachbody.com site, but it was so expensive. I got mine off Ebay.
I just got the Turbo Jam video about 2 weeks ago, and already I can see lines on my abs and arms I never knew I could have!
She also has a 20 minute workout as well as a 45 minute one. Also, she has a 20 minute ab video that is just awesome. This all will be in the DVD.
So to vary my workout, (I also have about 10 pounds to lose) I vary between the elliptical one day, Turbo Jam the next, and jogging the next, etc. Because I work and don't have time in the evening, I do all my workouts before leaving for work. Variety is the spice of life!!! Good luck and congratulations on wanting to take the weight off the natural way!!! :o)