I recently came across an interesting tool for looking at source code metrics SourceMonitor from Campwood Software.  This tool looks at source within a set of sub-directories and gives you basic measures about your software.

The following are a sample of measures captured through this application:

• Total Source Lines
• Total Statements
• Percentage of documentation
• Complexity
• Block Depth

A very interesting chart is the summary one below; this gives you an idea of how well your source fits within a predefined set of measures.