My Doctor told me to start walking 20 mins. a day. Doesn't matter how fast or how far. "Just get off yor butt and do it outside of your house." (Which is why I don't like to do Fitness tapes. As a SAHM, there are too many distractions at home, and something "more important" always needs to get done.)
I had no immediate success, as far as weight loss or any obvious physical benefit. However, I felt more mental clarity, my family began walking with me, my heart arrythmia got better, blood pressure lower, and panic attacks few and very far between. Now, I walk about 2 miles a day, brisk pace, with some jogging, and do conditioning execises at the Y and yoga at home. (I CAN do the yoga tapes, because yoga requires so much concentration, that I don't see the dishes in the sink, or the laundry needing to be folded, etc.)
Sounds like you have an excellent routine, and you should see great results! Good for you!
Keep the Faith!
Tracy