Standing Calf Raises - 3x10 (less weight and do more reps if you want)
Calf Presses - 3x10 (ditto above)
Seated Calf Raises - Put a moderate amount of weight on, whatever you feel is alright. Do as many as possible, rest for 5-10 seconds. Do as many as possible, rest. Rinse and repeat for about 60-80 reps at the end of your workout. I can barely stand up afterwards.