M.M.
The Rose Hill/Franconia part of Alexandria is one of the most affordable parts of the town. The previous poster is right -- Alexandria is huge. There is Alexandria Fairfax County which is the bigger one, and where 22310 is, and there is also the adjacent City of Alexandria, also called Old Town (22314, , 22301, 22305) which has its own school district. On the whole, the schools are better in Fairfax County, but you may like the atmosphere in Old Town better. It is older, quainter and MUCH more expensive. But great restaurants and shops. The good thing is that 22310 is pretty centrally located for both the county and the city. For example, I live in 22308 (google map the area) and it would take me about 20 minutes in morning traffic to get to 22310. We chose this area for the affordable large houses, big yards, 3 great elementary schools, and an excellent middle school, all within walking distance. I would say that Rose Hill is a neighborhood that has either original home-owners or young people who have recently bought these houses. Franconia has a lot of big townhouses (3 bedrooms), but not a lot of yardspace. Also check Springfield which is a little less expensive and still within 30 mins of Rose Hill. Now remember that DC area has some of the worst traffic in the nation, so driving 1 hour each way doesn't faze a lot of people. I also have a wonderful real estate agent, and I would be happy to give you her info. And I agree that greatschools.net is a REALLY good place to start. Because while there are some very good schools around, there are also some that aren't terrific. Good luck and welcome to town!!
One more thing -- there is a great website where you can start a home search -- it is called www.homesdatabase.com. You can search by zipcode, see the house on the map, pictures, etc. I find it to be the best site for the DC metro area.