I have just signed up for a 5km (3.1 miles) run in aid of Cancer Research, its on the 17th June, so it fits in perfectly with their recommended training plan. I agreed to do it as I did the 10km version last year when i was 50lbs or so heavier, I managed it at a walk in 90mins.
I'm not much of a runner though, I prefer circuits, the gym, Tae bo, etc. So I'm a bit nervous. Has anyone done anything similar? I could use some stories to encourage me right now.