He is very well broke and ties fine. We've been out hacking and seen noisy motorbikes, buses, tractirs, lorries and lots of farm animals at the farm we ride through and the only thing that spooked him slightly was an alpaca in one of the fields, haha. He soon got over it though after I made him walk past it a few times.
With being tied up, he's fine. Stands there while I groom him, potter about, tack him up and muck out etc and usually just dozes. I know however that what we're looking to do is a whole new ball game :)
Thanks again for all your responses.
~My boy, Saxon~