Thanks for all your comments everyone. I just wanted to get back to let people know that it is possible to completely change career in your 30's (or older). There are quite a few of these types of threads around the 'tinternet but you rarely get to find out how the stories end. So I hope my little tale might encourage other people to make the change.
Mind you, if you do go for it you need a stiff drink each month when you pick up your payslip!
