This deal has ended.
Buy.com has the Widescreen Two-Disc Special Edition of 300 for just $10. Shipping is $2.90 and there is no sales tax (except CA, MA, MD, TN). Sign up for a new Google Checkout account, and you'll receive an additional $10 discount, lowering the price to just $2.90. If you haven't already seen it, the movie is fantastic. It's a rethinking of the fable of the Battle of Thermopylae with imaginative direction and sophisticated action.