Preorder links are up at YesAsia:
Limited Edition w/ Poster $97.25 USD
Limited Pressing w/ Poster $54.75 USD
Regular Edition $34.49 USD
The description at YesAsia gives some more details regarding the contents of the box:
"Deluxe First Press Edition includes a bonus DVD with the Japan version of the
Gee and
Genie music videos, as well as two version of the
Mr. Taxi music video. It also comes with a
make-up case, a Girls' Generation logo
mini-bag, and a
40-page photobook that's only available in this edition."
Wow. With the make-up case and mini-bag this is turning out to be a really girly release. I have no idea if I should keep my preorder for the limited edition at CDJapan or change it to the limited pressing. 
Edit: Ok, so I figured out that the make-up case they're referring to is probably the box itself. Mini-bag aside, this isn't as overly girly as I thought it was. I'm glad that the box doubles as a practical item; I'm hoping it means that it's durable and high-quality.
