The Dark Knight Trilogy on Blu-ray
The trilogy ships on December 4, and is available for pre-order now. This edition comes with all three films, as well as bonus material and The Art and Making of The Dark Knight Trilogy.
Warner Brothers will be releasing The Dark Knight Trilogy Ultimate Collector's Edition in early 2013, though, so if you're a big Batman fan, waiting might be the best option.
Or, you know, buy both sets.