Kettlebells are also a useful bit of kit to own. I bought mine from totallyfitness.com and the results I have gained are great!! They are good for strength endurance as well as cardio fitness.

I started with a "heavy" 20kg and realised I needed to drop the weight as the training is geared towards endurance as opposed to lifting the heaviest possible bell.

Give it a go!! add it to your collection!! the guys at Totally Fitness are very helpful also!!