Anet A8 3D Printer US $145.44 (AU $205.17) + Free Delivery @ AliExpress
I've been looking for one of these for ages and this is the cheapest I've seen.
MUST SELECT "EU PLUG" AS OPTION
EU Plug also means you either need to be comfortable putting a new plug on yourself, or you need to buy a replacement cable. EDIT: Or use a travel adapter (Thanks Porthos).
This printer comes as a kit, so be prepared to assemble it yourself, although instructions can be found online.
I have no experience with this printer, but from the reviews I've seen it's rated as a very capable first 3D printer, and is easily upgradable.