Alternatively, pop over to Switzerland..
As Brit now living in Switzerland for the past 5 years, I'm surprised that this little island in the middle of Europe has also pretty much avoided the recession.
Salaries here are high (starting salary for a basic C# developer is about 120,000 CHF - about £80,000), and depending on which Canton you live in, you'll pay about 10% tax on that.
Everything here is more expensive, and some costs (like health insurance) are compulsory. But, it's clean, safe, and has affordable public transport which would shame the UK.
Geneva & Zurich are both major financial capitals, and there are plenty of English speaking jobs around.
Australia has better beaches. We just have lakes.