Do you have suitable charts, or a planetarium program? Try this sky map, a free download:-
http://skymaps.com/downloads.html
You need the Southern hemisphere version and if you can print it on A3 paper, that helps a bit more. Lots of suggested targets are given.
This weekend, try to locate the galaxy NGC 253, the Orion nebula M42, the Tarantula nebula NGC 2070, the globular cluster 47 Tuc (NGC 104), the open cluster NGC 4755 (later in the evening when it rises higher above the southern horizon), the galaxy M31.- they are all on the sky map you downloaded above.
Get away from Sydney as much as possible - its sky glow extends more than 100km! Get away from direct lights to allow your eyes adjust to the dark for 40 minutes. Use a redlight torch to look for things and examine the maps. Relax, and don't try to push the magnification beyond around a 20mm eyepiece, until you have an object that is worth magnifing.
Let us know how it goes!
