Second attempt at adding photo!
Thanks all for the help and advice on gait analysis. It gave me a bit more confidence when I went to the shop this morning. As John suspected I live in Liverpool and had researched which store I would go to and had already settled for Runners Need in Eastham so it was great to see someone recommending them. I am glad I went there as I was assisted by Steve who was very informative and helpful. I explained I was not familiar with the treadmill and he was really patient. My gait was analysed in several pairs of shoes and I was confident with the result which bore out my own suspicions that my ankles roll inwards. I am happy with the shoes I settled for - Asics GT1000 4 and can't wait to try them out on solid ground (I won't be using a treadmill again any time soon!)
Not wanting to break with tradition, here they are, Tah Dah.......