I definitely recommend South Florida,Boca Raton,Coral springs and some other cities,nearby where many people move for the very good public education systems,
I moved here in Boca Raton from NJ about 8 years ago and it is a great place to raise children,great schools,culture,museums,restaurants,sports activities,wonderful weather,diversity and much more.
cost of living not that low but real estate prices nowdadays present a great value .
Feel free to contact me with any questions about South Florida and Boca Raton in Particular.
Best of Luck
I'm sorry for your loss - will moving be the best thing for your 13 year old?
Good Luck and remember, when you have money to spend it's like the Billy Squier song:
Once you have narrowed down a state and eventually neighborhoods, here's a great resource to research school and community information.
Then, having found a couple of states, you should research savvy Realtors(r) in those areas. Another great resource for consumers seeking out agents is http://www.Activerain.com. Members of Activerain frequently post inside info on the neighborhoods they service and will be more than happy to provide you with useful information.
Congratulations on the successful sale of your home and best of luck to you in finding your next one!