Amazon.co.uk has Harry Potter - The Complete 8-Film Collection Blu-ray Set (Region-Free) for $44 - $8 off at final checkout + $5 postage/packing to U.S. (6 to 10 business days) = $42 shipped
(USD). Make sure to select Amazon.co.uk as merchant (in sidebar).
You can use your Amazon.com account to check out. Includes Deathly Hallows Parts 1 and 2; the U.S. set
is normally over $70. If you order now, you *may* get it in time before Christmas - usually takes about 4 weeks.