Hey! Greetings from another Virginian!
I just posted about Va. to grizzlyhall's thread, before I saw this one!
Anyway, greetings! Yes, I like Busch Gardens Williamsburg, especially in the fall. My favorite thrill ride there is Apollo's Chariot (where that bird hit Fabio in the face!), but I still love the smoothness of the Loch Ness Monster. Howl-O-Scream is really done well. I have not tried the new Halloween program at Paramount's King's Dominion, although it looks to be more focused on gruesomeness than the theming that is done at Busch. I think that is always true, though: PKD goes more for the cheap thrills that bring in hordes of teenagers, while BG focuses on true theming and fun for the whole family.
I also enjoy Colonial Williamsburg, again especially in the fall. A great place for a date. They have "ghost tours" that are fun, too.
And one more thing, since I seem to be focusing in Halloween in this post: The Edgar Allen Poe house is a nice, cheap tour in Richmond, and it is neat to see his room preserved on the "lawn" at UVa. Both worth seeing if you haven't, but too small for a single destination trip.