Good advice from Chris there.
You're in Tarneit? Take a Saturday morning and drive across to Bintel in Camberwell and actually look at a telescope in the flesh.
I 100% agree with Christopher also 8-inch Bintel Dob for $499 is the best value you'll get and it will last you a long time.
http://www.bintel.com.au/Telescopes/...oductview.aspx
Also think about joining the ASV (
www.asv.org.au) they have loan telescopes for $60 and $50 of that is refundable when the telescope is returned at the end of the loan.
Seriously drop the idea of these small aperture scopes. You won't look back when you look through a 6 or 8-inch Dobsonian.