I. U.S. BANKING
Federal banking laws, regulations, etc. are compiled in the CCH Federal Banking Law Reporter. The Banking statutes for each state are published in Volume 7 of The Law of Financial Services, and in each state's statutes set (see "State Statutes"). John K. Villa's 2-volume Banking Crimes: Fraud, Money Laundering, and Embezzlement provides a good overview of the dark side of the field, complemented by Villa's Bank Directors', Officers', and Lawyer's Civil Liabilities.
The Federal Reserve posts statistics and other information about the U.S. banking system. The Office of the Comptroller of the Currency posts information on national banks.
Reports: The FDIC posts reports and surveys on the status of the U.S. banking industry (www.federalreserve.gov/publications.htm). The Federal Reserve also sells relatively inexpensive books on the financial status of banks, which you can look up through the Publications page of the Federal Reserve's Web site.
Document Retrieval: Thomson Research Services (formerly FDR) has a database of banking-related public documents and has some experience getting them (from the Federal Reserve, etc.). You can reach them at 800-874-4337.
II. FOREIGN AND INTERNATIONAL BANKING
Volume 2 of Regulation of Foreign Banks summarizes the banking laws of Australia, Brazil, Canada, China, the European Union, France, Germany, Hong Kong, Italy, Japan, Korea, Mexico, the Netherlands, Singapore, Spain, Switzerland and the United Kingdom. The Bank for International Settlements publishes reports on international banking. The Banking Regulation and Anti-Money Laundering volumes in the Getting the Deal Through series summarize the laws of over two dozen foreign countries.