Nice personality test at http://www.41q.com/
Your personality type:
Serious and quiet, interested in security and peaceful living. Extremely thorough, responsible and dependable. Well-developed powers of concentration. Usually interested in supporting and promoting traditions and establishments. Well-organized and hard working, they work steadily towards identified goals. They can usually accomplish any task once they have set their mind to it.
Careers that could fit you include:
Business executives, administrators and managers, accountants, police, detectives, judges, lawyers, medical doctors, dentists, computer programmers, systems analysts, computer specialists, auditors, electricians, math teachers, mechanical engineers, steelworkers, technicians