Turnout is high.
And not just at my voting location.
UPDATE: Unfortunately, all we can do right now is hurry up and wait. Anecdotal evidence suggests turnout is high pretty much everywhere. While my location was crowded this morning, I have heard from several that turnout elsewhere in Northern VA is light. Also hearing from friends working for McCain in SW Ohio that turnout is very heavy.
Exit polls will start coming out around 5, but don't waste your time. They are notoriously erratic and unreliable.
3BP will be blogging through the night so keep hitting refresh like your life depends on it.