I've signed up for this
http://www.runordye.co.uk/
I know for some people (Ally!!) 5k is nothing but for me its more like two marathons back to back!!
A group of us are going to do it at Chatsworth although I think so far only 2 of us have actually signed up. I thought it would motivate me to keep going. Surely if I keep running/shuffling 3 times a week I will be capable of doing a 5k in 8 months time!