If you are pre-ordering Twilight New Moon online but want to be sure that you will see it the day that it comes out, you should look at ordering it through Amazon. Amazon is running a deal where if you order the Twilight Saga: New Moon Two Disc Special Edition through them, you will be able to download it as well through their Video on Demand on release day and watch it immediately.
Amazon is selling the DVD for $20.49, and it is eligible for free Super Saver Shipping. The release date is March 20. The Two-Disc Special Edition includes audio commentary, a behind the scenes documentary, and music videos.