I concur so much about the intense cardio. I also did not lose or reshape until I really ramped up my cardio, both in terms of intensity and duration.
I think that each person has to find the individual mix that is optimal for them in the cardio/strength training training equation. But in terms of cardio, more sure can't hurt!
One other thing I have found to be true is that not only in terms of strength training but also in relation to cardion, variety helps. I try to do something different everyday, treadmill, elliptical, tramp.
Time will tell how effective this is. But it is fun!
And I really enjoy my all cardio days a lot...its like just cruise on til those endorphins kick in!