Someone on the newsgroups posted a linke to SourceMonitor. It is a tool that analyzes source code (Delphi, C++, C#, Java, VB, C, and HTML) and reports on various code metrics, like the number of lines of code, average statements per method, methods per class, depth of method, global routines and variables, cyclomatic complexity of a method and tons more. The charts are incredible (Kiviat graphs that are configurable with tolerance levels), and you can drill down and sort by any criteria. By doing this, you can identify methods that need to be refactored. In addition, you can View Source on the details and get buttons to take you straight to various offending code metrics (max depth, max complexity method, etc.). The detail view also shows graphs and more information about each unit. Lastly, you can take multiple snapshots so you can monitor progress of your source code's health over time.

This tool is listed as being freeware, but this is one instance where you get WAY more than you pay for.