Thanks everyone for sharing your thoughts! I'm not British although all my qualifcations are from the UK. The motivation to accept the offer in the UK is really not based on money, rather it is because it represents the highest achievement in my professional development and I believe the experience will go a long way in my future career development.
I just moved to Perth from a tiny country deemed as the Asian financial hub. Hmm, the reason for the move is that I want a more balanced life style. After working in the financial industry for years and dedicating all my time climbing corporate ladder, I started to wonder how much longer I can bear to live a life which only revolves around work and nothing else. Since I'm not getting any younger, I thought it's time for me to move to OZ to start a real life and embrace life's simple pleasures......
I'm holding an Australia permanent visa which will still remain valid even if I leave the country and work in the UK for two years. The employer in the UK will sponsor for my work permit in the UK, so visa is not part of my concern. Now the question is really whether I want to go back to the stressful and hectic life to further develop my career or stick to my original plan to have a better life in OZ with a less glamorous career.
I will keep you guys posted on whatever decision I make. Thanks again for your time and for sharing the valuable advice.