Hi Duncan,
Good news is your finance is approved
Now decision making which one?
Been there, done that

I opted for 12" Bintel solid tube Dob which is GSO anyway.
Hope this threads will help you:
http://www.iceinspace.com.au/forum/s...=skywather+gso
http://www.iceinspace.com.au/forum/s...her+gso&page=2
bob