Going to attempt a half-marathon again tomorrow - the last day I tried I did it but I was absolutely wrecked and, foolishly, hadn't done a warm-up. I'm going to be a bit more prepared tomorrow and I'll see how it goes.
On a similar note, I got my hands on the Insanity workout programme. A friend is doing it and is loving it although it is sixty damn hard days of training. I'd like to try it - I have it on my 'to do before Christmas' list:
16 hours ago