Weinreb's Leading Constitutional Cases on Criminal Justice is the leading casebook in the field. Supreme Court cases are generously edited for classroom use and are presented in a simple, straightforward format. The casebook is updated annually. The new edition is published in August, in time for fall classes, and includes cases decided through the end of the preceding Term of the Supreme Court. Herring v. United States (2009) (Fourth Amendment; exclusionary rule) has already been selected for inclusion, along with all other significant cases that will be decided during the current Term of the Court.
The best put-together law textbook I've encountered in three years of law school. I love that the editor limits the source material footnotes to those that are important to the Criminal Procedure student. If we want complete footnotes, we can look them up.