Okay, take this with a grain of salt, this is my opinion...
If you love Disney you will probably hate King's Dominion...
There are two theme parks in VA, and King's Dominion is not the better one.
You would probably enjoy Busch Gardens far more...

King's Dominion- no real theming, food is not really good, rides are okay, shows are horrible- like the first episodes of American Idol each season, they have a small water park but the water is hot like a turkish bath which is kinda gross.
Busch Gardens- amazing theming, beautiful park with green spaces, tons of yummy food choices, fantastic rides, great shows, and you can always visit the sister park Water Country USA.
While in Richmond I would also check out the parks and recreation offerings, like Three Lakes Park
http://www.co.henrico.va.us/rec/rec...ities/three-lakes-nature-center-aquarium.html
Meadow Farm Park
http://www.co.henrico.va.us/rec/recreation-centers-facilities/meadowfarm.html
Both these locations have activities for the whole family.
Don't forget to take advantage of your location to take time to explore the rich history that lies between Richmond and Williamsburg on route 5.
There are many historic plantations, the location of the First Thanksgiving in the United States (in 1619 before the pilgrims even landed) at Berkeley Plantation, Shirley Plantation (1613) which is Virginia's first plantation and is still owned by the family but open for amazing tours, and much more.
http://www.jamesriverplantations.org/
http://www.nps.gov/nr/travel/jamesriver/sitelist.htm
And an article that highlights the importance of the history made in this area:
http://courier-herald.com/pages/ful...y-KATHERINE+BANKS &id=5022758-KATHERINE+BANKS
Dogham, the plantation mentioned in the article, still stands today, a private home not visible from route 5 but north of Shirley Plantation.
Don't forget Colonial Williamsburg, Historic Jamestowne and Jamestown Settlement, and Yorktown.
Patrick Henry's home Scotchtown, is close by in Hanover County, but not as fun as his home and burial place, Red Hill, a few hours out where I live.
There's so much to see and do here in Virginia.
I hope you will enjoy your (for now) new home
And right now Colonial Williamsburg is offering a special for Virginia residents- pay for 1 day get the rest of the year FREE:
http://www.colonialwilliamsburg.com/plan/special-offers/va-resident/?WT.mc_id=2361