If you are not sure if the Enterprise Library for .NET 2.0 is the right thing for your application you should check out the new
Hands on Labs. All six Application Blocks (Caching, Security, Cryptography, Data Access, Logging and Exceptions Handling) are shown in action with a detailed step for step introduction to get started with each of them. Another source of information mainly configuration of the Enterprise Library can be found in the articles of my blog.