Buy 1 Get 1 Free on all items, so you can even preorder a bunch of games at (effectively) half price.
Shipping came up as $10 for me for 4 games, $153 total.
Standard Shipping seems to be $10 (2-8 business days), Express $18 (1-4 business days). Add $5 for Loss or Damage Cover (recommended for orders above $100).
If you're happy to wait a bit, this is a killer deal on pre-orders/new releases
EDIT: A lot of pre-orders are now sold out, but still the promo remains sitewide.
Mod Note: Available again until midnight.