Check out the city data info on Jefferson City, quite a bit of stats for you.
http://www.city-data.com/city/Jeffer...Tennessee.html
As far as detailed and personalized questions, feel free to ask about certain areas, neighborhood choices, where to eat, what to do, making sure it's the best geographic fit for you and your wants and needs, etc. Are you moving to the area for choice or for employment? I'm sure some people on here have spent some time there and would be happy to chime their two cents is you have any specific areas of concern. Best of luck in 2010!