Guys! I never said that weightlifting was the only important thing. Nutrition is really number one, no question in my mind and I think both conditioning and strength are pretty close (at least in the mens game, I could easily get by without much strength training).
Icy, I researched for a little on what you said about a pound of muscle only burning 5-10 calories per day and I found a lot of conflicting answers, however multiple credible sources seemed to back this up, so I was obviously mistaken. However, to me this still doesn't negate the importance of weight training or some type of strength training (I'm sure you would agree). It merely states that it may not be as effective for fat loss as previously thought, but there are other obvious benefits. So, I admit that my post was a little off, but I was under the impression an extra pound of muscle burned about 30 calories per day. I'd love to see a study done on something like this, because it would be nice to know the right numbers.
klc, as I said before, I agree that nutrition is extremely important. However, I don't think that long duration exercise is necessarily the best way to 'rev up' your metabolism. I think the most assured way to do this is a high intensity. For most people, this means shorter workouts, intervals, and some rest periods because the intensity is so high that your body cannot continue without a break. However, what I'd also like to mention is that I read before that you completed a 6 mile run in 30-35 minutes. So a long duration run for you would be at my interpretation of a 'high intensity' because you are a very well conditioned athlete, however I doubt many people on this forum could keep up such a high pace for such a distance, thus intervals would be much better for them. And, I'm sure that you do some method of interval, fartlek, or circuit training as well.
Here's an article on oxygen debt that I think would be a good read, I just briefly skimmed it though