Hello, I am plaintiffs' counsel in Walker v. SWIFT, Northern District of Illinois, case no. 06 3447. The case alleges that Brussels-based SWIFT violated the First and Fourth Amendments to the Constitution and the Right to Financial Privacy Act by illegally disclosing its entire database of financial records to the U.S government.
Today Chief Judge Holderman ruled that plaintiffs have standing to sue and can pursue their Fourth Amendment and Right to Financial Privacy Act claims against SWIFT. I don't have a link to the orders but you can view them using the court's PACER system at http://pacer.psc.uscourts.gov/ and searching by case name or number, again 06 3447, Northern District of Illinois.
You may recall that the New York Times published a front page article about this last June then later "apologized" for running the story because it saw no possible legal basis for challenging the program.