I live and work in Williamsburg, Va and would be happy to help you with any questions you may have. Williamsburg is a large area with several sub communities. It all depends on what you are looking for and where. You will definitely pay a little more for Williamsburg than some of its surrounding areas like York County, Toano, Essex, or West Point for example.
Greg, I see no one has responded. I work in Northern Virginia, but if you are looking to buy or sell, I'd be glad to put you in touch with a colleague who does work in that area. If you'd like that referral, just email me at firstname.lastname@example.org