Ping ponged back and forth from Australia to the UK to Australia and now in the UK again. I am a teacher and jobs are pretty easy to come by in London if you want to supply teach. I think it may also be pretty easy to get work in Nurseries but the money is not as good if fulltime. Supply is better I think. When I got sick of supply teaching and wanted the security of a perm job, I had to retrain to get my UK teaching qualification. You can teach for 2 years here without one but that is two chronological years. So if you arrived in 2011 you must begin retraining by 2013 even if you only taught for a few months of those two years due to travel etc.
Things are pretty bad here at the moment with the financial crisis. Although I think things are still cheaper here than in Australia. Food is a prime example!