Arms and 2 Aerobic Classes

I did a Split today...my Arms and 2 Aerobic Classes.
In the afternoon, I worked out my biceps...

Biceps:
Hammer Curls (6 sets with 15 reps)
Seated Dumbbell Curls (6 sets with 15-12 reps)
Machine Preacher Curls (6 sets with 15 reps)
Straight Bar Curls (6 sets with 12-10 reps)

Aerobics:
Hip-Hop Class (first hour followed by...)
Circuit Training Class (Weights and Cardio)