Suggestions for attending a game...

If you want to stay downtown, you should probably book a hotel as soon as possible. If you don't mind a short drive, I'd suggest trying to stay around the Opry Mills/Airport area. If you head to the game a 2-3 hours early, traffic won't be horrible and there is plenty of parking for $20.

You can get the same hotel in that area for half of what it would cost you downtown.