Big Arms!

Biceps Circuit 
Dave Draper Forehead Curls: 12-15 reps (touch forehead with each rep) 
Arnold Incline Dumbbell Curls: 12-15 reps (do both arms at the same time) 
Larry Scott Preacher Bench Curls: 15 reps (keep elbows close with close grip on curl bar) 
Reverse Standing Curls: 15 reps 
Forearm Curls (at end of bench): 20 reps

Repeat for 5 sets then move to Triceps

Tricep Circuit
Arnold Deep Bench Dips: 30 reps (go deep)
Sergio Overhead Tricep Extension (on pulley): 20 reps (go heavy)
Double-Arm Kickback: 20 reps
Arnold Skullcrushers on Incline Bench: 20 reps
My favorite: Band Pushdowns: 20 reps

Repeat for 5 sets