Get jacked with a single piece of workout equipment. Seriously. If you can master the kettlebell or even just a few exercises with it you can be well on your way to building athleticism beyond what you thought you were capable of.
One of the staples to a great KB training program is the Kettlebell Clean. It is a tricky one, but INCREDIBLY beneficial if you can master it.
The kettlebell is one of the most versatile pieces of equipment developed by the Russians (sneaky Russians) and it is about as cold, hard, and no-BS as they are. Check out the vid and start practicing the KB Clean and add it into your training. It will toughen you up real quick, while simultaneously helping you develop power and conditioning.