The dumbbell rollover is a great supplemental movement for the bench press because it increases tricep strength substantially. You'll lift the weight like you would when doing a triceps extension, but lower the weight as you would a bench press.
Be sure to keep the elbows in line with the shoulder and don't allow them to travel forward during the extension portion of the movement.
Do this exercises in 2-3 week cycles with dumbbells that are challenging enough to perform 2-4 sets of 6-10 reps for strength, or 12-20 reps for massive tricep growth.
Jim Wendler lists the best in conditioning, getting stronger, assistance work, home gyms, and strength training books, along with torpedoing the “best” myths.
Pittsburg Pirates outfielder, Austin Meadows, demonstrates this variation of the rope row. Note the hand rotation for more activation of the lats and upper back.