If you're looking for a new way to strength train, you may want to get your hands on an NRG BALL. It's a barbell and medicine ball rolled into one piece of equipment. It comes in a variety of weights including, 5 lb. ($59.95), 7 lb. ($69.95), and 9 lb. ($79.95). You can use it as shown, or you can unscrew one of the handles to do exercises like Overhead Triceps. You can also use the medicine ball on its own.
I know it seems pretty expensive, and rather gimmicky, but wait until you see all the exercises you can do with it. The website features a ton of videos to work your core, upper body, glutes, and legs. To see how a video on how you can use the NRG ball to get strong abs just read more.