i have 2 benq's. They're fine, however the LG Flatron's (i also have one of those) have a better warranty.
The real decision you have to make is how much you want to spend, then you can look at the quality, size, warranty, etc within your budget. Have a look at this site, they are based in Victoria and will ship anywhere in Australia.
CentreCom Online - Notebooks & Computers