Hey fellow Aussie here too. For decent clouds I'd go with a Direct to Lung device. For low maintenance, you'd be looking at an internal battery mod and a sub-ohm tank. These are sold as kits with the mod and tank and some coils included. The best advice I can give is to get online or walk into a vape shop depending on where you live. I live in regional Queensland, so online is my only option. Vapoureyes in SA would be my recommendation for great advice and a huge range (now I sound like a Bunnings ad). They'll be able to point you in the right direction. If you have any more questions or want some recommendations on devices, let me know :)