Happy to help another trail runner rundinarun! I prefer trails myself. The only step aerobic tape I mentioned was any of the 3 Imaxes. Yes they are step with intervals which can benefit a runner. But if you don't like step you can pass. The other workouts I mentioned were weight workouts from the Intensity and Hardcore series as that is what Carrie had. I'll break down the initials and put them in the right series to help:
Intensity Series:
ME=Muscle Intensity, overall body weight workout
PUB=Pyramid Upper Body, upper body weight workout
PLB=Pyramid Lower Body, lower body weight workout plus floor work
Hardcore Series:
MM=MuscleMax, overall body weight workout
GS C&T=Gym Style Chest & Tricep (timesaver is a shorter version of the original workout)
GS BS&B+ Gym Style Back Shoulders & Biceps (once again the timesaver version)
GS Legs=Gym Style Legs, lower body weight workout plus floor work incorporating the dynaband)
As a runner I have always believed in weight workouts to get me strong. Upper body strength in a marathon has its benefits the last 6 miles! I can work my legs ALOT but not many runners agree with this. So you kinda have to experimant to see what helps. Any of the weight workouts along with running can help you get strong and lean. As you have the Gym Styles you might want to add some weight workouts from the Intensity Series. Hope this helps....
...Carole