Battlestar Galactica Season Three will be available March 25, 2008.

Battlestar Galactica: Season Three at Amazon.com (currently $38.99 - subject to change)

The Showtime original series, The Tudors, will be available on DVD January 8th, 2008.
The Tudors - Season 1

Here's the product description from Amazon.com:

Rumor has it that just before Christmas, you can pick up a copy of High School Musical 2! Disney apparently will be releasing the DVD on December 11th.

Pirates of the Caribbean - At World's End (Two-Disc Special Edition)

Releases on December 4, 2007.

Studio 60 on the Sunset Strip DVD will be available October 16, 2007.

NBC's canceled show The Black Donnellys will be available on DVD September 4, 2007.

ABC's Desperate Housewives season three will be available September 4th, 2007.
Preorder Desperate Housewives - The Complete Third Season from amazon