Thanks for the advise guys,

Well Collimiation isnt too bad, I can do it (funnily enough) haha the nice guy at the shop showed me a laser collimator and how it works, and i ended up buying it. Works like a dream and it turns out collimation is actually quite easy once you know What To Do!

I was just worried that if i had to constantly collimate the scope, was this a sign of poor craftsmenship/instablitiy/poor mirrors etc..
It looks like from your replies this is just going to be part of setting up the scope.
Kev very interesting post, thanks for the info. it looks like your right about the locking/opening of the tube assembly, it does keep knocking collimation out.

Thanks for your advise guys
Cheers,
Ash