Hi Anthony,
Great choice, sounds like you've done your research. The 8" scope is an excellent starter scope - easy to move around, plenty of aperture to show you faint stuff and detail on planets and the moon.
Observing under light polluted skies is never as rewarding as observing under dark skies. You should definitely try to get to a local viewing night, and/or you're most welcome to come up to Kulnura (1 hr north of Sydney) on the Central Coast. A group of us have observing nights there every new moon - the next one is on the 16th December - there's a thread about it in the Star Parties forum. You'll get to see and look through some 8" and 10" dobs, and decide if staying out late at night in the cold is something you want to do
If you want to get into astrophotography, the 8" dob may not be the best choice, but if you're not sure you want to stay in the hobby, then astrophotography probably isn't the best place to start either.
The 8" dob is cheap enough that if you don't enjoy it, you won't have broken the bank and it WILL re-sell easily, especially here on IIS, if it's at the right price.
You should only consider going to astrophotography after you've gained a bit of experience.. unless of course you're already a photographer who now wants to take pictures of the sky.. if that's the case, then the 8" dob isn't the place to start.
Anyway enjoy your stay here - hopefully forums like this lure you deeper into the hobby and you'll be hooked for life!

Hope to see you at Kulnura on the 16th!