Here's something to ask yourself ving. "Where am I going to grab and go it to?" Ie will you be taking it a fair way out of Sydney (nice dark skies), or will you only be taking it over to the Rellies places (same same old). If it's a get to a dark site scope then as a pack and go scope you could do a lot worse than getting an ED80 or Zenithstar on an AltAz mount or similar. But if your staying around the burbs and it's not going to be that much darker why not save your pennies for a light pollution filter for you existing 8" Dob. They look fairly grab and go if your not going too far.
|