Personally, I did not like colonial Williamsburg at all, it was rather boring, but I did like Jamestown Plantation...That was very interesting and worth another visit.
We also visited Busch Gardens, which my husband enjoyed very much...I was more interested in exploring the park, shopping, and eating, I do not care for rides that much.
Quick Tips:
We traveled without children, however, I suggest those with kids, to visit the historical sites in the early mornings, when the crowds are thinner.
Best Way To Get Around:
Driving is probably the best way to get around, however, depending on where you are staying, walking can be very fun too.