I am plenty overweight after giving up smoking almost 2 years ago and I am rapidly approaching 55. In order to motivate myself to run I use a Garmin Forerunner 305 GPS watch which records pace, distance, time and heartbeat from a chest strap monitor.
I did use runkeeper on my iPhone but the gps on the 3GS wasn't brilliant however this is much improved on the 4S. You can upload from the garmin to runkeeper if you like that interface.
I was quite pleased that I managed the 5k Santa Dash through Brokerswood in December and might just have a go at something a bit further this year.
