Triceps

Beginner

*Close-Grip Presses			   2-4/12, 10, 8, 8
Pressdowns				   2-3/15, 12, 10, 8

Other exercises for beginners: Parallel Bar Dips, Kickbacks 

Intermediate: Mass

*Close-Grip Presses			   3-4/10, 8, 6, 6
*Behind-the-back Dips			 
or
*Parallel Bar Dips (weighted if needed) 	   3-4/12, 10, 8, 6
French Presses (Skull Crushers)		   1-4/10

Other exercises for mass: Single-Dumbbell overhead Extensions, Power Pushdowns, Kickbacks 

Intermediate: Definition

French Presses (Skull Crushers)		   2-4/15, 12, 10, 10
One-arm Dumbbell Extensions		   2-4/12, 10, 10, 8
One-arm	Reverse-Grip Pressdowns		   2-4/15, 12, 12, 10

Other exercises for definition: Reverse/Narrow-Grip Bench Presses, Standing Barbell or Dumbbell Extensions, Decline or Incline French Presses (Skull Crushers), Single or Two-handed Regular or Reverse-grip Pressdowns, Overhead Cable Extensions, Kickbacks