Training in South Africa, lovely. And if Andy has back problems he should take up Pilates, it's the best thing I ever did for a bad back, it strengths all the core muscles, I hardly ever get any pain now.
hehe... i just had an image of Andy doing pilates.. hilarious
As for running, i absolutely love it, i dont generally do it to get fit or anything, it just helps me to calm down, and clear my head for a bit
The best is swimming
works ever part of your body, and i believe is a lot more fun.