Hi thanks for all the help, i went and had a play with the 18-135 STM in a local shop the other day and thought it was just what i was needing at the moment.

Anyway i now have one, had a quick play with it earlier but started to rain so not had much chance to test it, off on holiday a week on Saturday so if i dont get to give it a good work out before i will put it through it paces then!