Boreal is great, pity about all the expats though!
Welcome to Geneve. My wife and I moved here from Melbourne over a year ago now and we are having a great time. Not everything is perfect of course, but it is all about your attitude and having a sense of humour.
Don't know if you have been directed to or discovered glocals yet but there is an aussie group on there who periodically try to organise events, you might be interested to check it out if you get desperate for the accent.
Personally I take advantage of the multi-cultural mixing pot that is Geneve and try to avoid aussies