I certainly am not Cathe! However, I have worked out with her for many years.
Here is my take...I am sure others will chime in as well. I think that Cathe's workouts would be perfect for you; especially since you are a runner. I always worried about becoming more 'bulky' than lean; as my body type lends itself to building muscle easily, but not necessarily defining. However, and this is me; but I think it holds true to most, you can't bulk up too much being a woman number one. Number two, if you lift heavy on her weight workouts, and really work that weight, as well as cardio (which seems like something you have a handle on being a runner!) and a good diet, you will be lean with these workouts! I actually lift heavier than ever and am seeing good definition. I always thought I needed to cut back on the amount of weight I was lifting; but it is actually the opposite. Cathe can also be tailored to whatever you need as well. And the rotations that she posts (and the archive of them) are very helpful for whatever specific goals you want. But, it takes awhile to collect all those workouts! She is well worth the time and effort.
Good luck!
Becky