Not quite the same, but we moved to Malaysia from Brisbane and found it really useful to not think about it as a forever thing, but to put a time limit on it. We decided that if, after 3 years we still weren't 100% happy here, that we would move home. So, while we've had a great time living in Asia and travelling all over the world, we've decided to move home next year. I know things aren't great in Ireland at the moment, but things will eventually pick up again, and in a few years moving back might be a real possibility.
In the mean time, this http://www.brisbane-australia.com/free-stuff-to-do.html is a bit of a list of free stuff to do in and around Brissy, so it might help to try and get out and do some things and see what is great about living in the Sunshine State. :biggrin: