A year ago, with exceptionally strong referrals, I purchased a new backroom administrative and accounting software for my 20 agent firm.  It does everything it advertised, but requires the training and skills one might expect of an airline pilot.   I just spent 9 months training and paying a very talented individual.  Only within the past month has there become a comfortable understanding of how the software works.   Now, that individual has been rewarded by a healthcare company with a pay and benefit package that Warren Buffet might have trouble matching.   So, I am looking for an office manager again, and fear the training process. 

Does anyone have a simple, but solid management software they would recommend for a small firm?