Nashville is a great city. I am an LPN and am starting to work towards my RN this fall - lots of opportunity for work, school, and everything else in between. I also have two boys - there's great things for kids to do, and we've met a lot of really awesome and supportive friends.
I transferred my license from NY and the TN board is really helpful.
What else.. we've only been here 2 years, but love it here. PM me if you need! I am looking at going back to work PT as an LPN next summer or fall while I finish school. I haven't been working, but I've been volunteering at Vandy Childrens for the last year and everyone I've met there is also really friendly and helpful. The Vanderbilt community is HUGE, but I am sure if you emailed them with questions they would help you.
Good luck! I haven't met anyone who doesn't like it here!