Do you want attached or a detached home ? newer home or older ? As a previous poster stated , If you one of you is over 55 you could consider Colonial Heritage or The Settlement at Powhattan Creek. These are the only neighborhoods where no children under 18 are allowed to reside in the home for more than 30 days. The Settlement is a little closer to the center of town , bike trails, etc.
If you are willing to consider a neighbor with a few children in it I would suggest Ford's Colony. There are over 14 miles of trails within the community. Within a mile are Grocery Stores, Target, Restaurants, etc.
Kingsmill is another consideration although a home in that price range will be a little dated typically.
If you would consider a town home New Town is the new retail hub of Williamsburg. Featuring 9 restaurants, a 12 screen movie theater, shops, etc. High Street is another town home alternative although it is currently under construction. It will also have Restaurants, a theater, shops, etc.
There are many other wonderful neighborhoods to choose from if you want to take a trip down I would be happy to show you around.