Thanks for replies. If I decide to go it would be probably for 2-3 years and then move on, so not sure about buying a flat. I would go for three main reasons:
1. Oxford University is quite good.
2. I've never been to UK.
3. Would like to ride all over the place ;-)

I have just found that average income in UK, as of April 2012 was around 26.5 k GBP pa. ( http://www.bbc.co.uk/news/business-20442666 ) So I guess with mine slightly above 30k GBP pa. I will not float in luxury either. :-)
Salaries in science are unfortunately quite low at the beginning, and I, with mine 28 years of age, am just at the bottom of the ladder... oh well. Will see. :-) Thanks again for responses, Greg