WINE WARS: Here’s a paper on interstate wine shipment and the Commerce Clause from the Pacific Research Institute.
UPDATE: More here and here. The latter post mentions an issue that deserves more attention than the PRI paper gives it — the role of the 21st Amendment.
ANOTHER UPDATE: Here’s a piece by Brannon Denning on the subject that’s very much worth reading, too. And here’s a much longer article by Denning on the same subject, from Constitutional Commentary.