Unfortunately I'd still be downloading from the Australian Steam Servers, so the only thing I could download would be the low violence version, regardless of where I bought it (as far as I know). That and unlike Wellen I wouldn't be able to play multiplayer if I was to get it. Censored versions are usually incompatible with the regular kind, so I'd be stuck on a continent with only censored servers.
The 18+ rating reform is currently in the pipes and looks like it'll pass, so I'll wait and hope. Even if that falls through I'm planning on leaving the country sometime next year anyway.