My OH works in a role which involves meeting a lot of top people in industry and universities and has very strong views on the importance of science and engineering! Also see these news items...
http://news.bbc.co.uk/1/hi/programmes/n ... 170341.stm
and there has been a Government scheme to attract overseas science graduates which indicates that a lot of migration happens in the opposite direction to that suggested by the original poster....
"The UK is suffering from a shortage of physical science, engineering and mathematics students at university and skilled workers in the labour market.
The shortage could do serious damage to the UK's future growth.
So the UK is looking to invest in the high achievers of tomorrow.
There is a real demand in sectors such as research and development and financial services for maths, science and engineering specialists.
It is hoped that this scheme will encourage overseas students to study in the UK and following graduation be a real asset in the work place"
MInd you, the UK might have to work a bit harder to counteract the attractions of life in Australia.....!