Ending today, Expercom offers the AppleCare for 15" MacBook Pro, model no. MD012LL/A, for $299.00. (It's the bottom-most deal.) Coupon code “protect” lowers the price to $249. With $6.50 for shipping, that's tied with our mention from two weeks ago and the lowest total price we could find by $44.
Update: As a reader found, LA Computer Company offers it for $242 plus $7.43 for shipping.