G'day Paul and welcome.
Can't say I'm familiar with the Celestron either, so I can't really comment on it.
I am however familiar with dobs. I own a 12 incher and I love it!
A Dobson mounted Newtonian reflector, to give it the full title, is the simplest and easiest to use design available, bar none.
They also give the best dollar value per inch of aperture of any scope design.
I note however that you state that you would want to transport it in the boot of a car. That might be a problem. What sort of car in particular?
Let's work out the type of scope that you want to buy first, before we give any advice on accessories.
Cheers, Phil.
