Midlife career changes are nothing new. If you're looking for a field with abundant opportunity and if you enjoy caring for others, nursing might be right for you. The job outlook is robust: The Bureau of Labor Statistics reports employment among registered nurses will grow faster than the average for all occupations through 2008. Some reports indicate that more than 1 million new and replacement nurses will be needed by 2012. A career in nursing is also lucrative: Typical salaries start in the $35K-$50K range and increase significantly for more specialized positions. Some ...