Syntax Highlighter ComPress is a simple Wordpress plugin, that is based on the latest Alex Gorbatchev's SyntaxHighlighter Script. Code and source text of different mark-up or programming languages can be highlighted.
There are other WordPress plugin based on the SyntaxHighlighter Script but these cause long page loading times and they are difficult to handle. The advantage of Syntax Highlighter ComPress is that only necessary brush files will be loaded dynamically. Another advantage is that your code can easily pasted into your posts, no need to replace all '<' with '<'.
Supported mark-up or programming are: AppleScript, ActionScript3, Bash/shell, Coldfusion, C#, C++, CSS, Delphi, Diff, Erlang, Groovy, JavaScript, Java, JavaFX, Perl, PHP, Plain Text, Python, Ruby, Scala, SQL, Visual Basic and XML.
The plugin is localized in English and German.
Download: http://wordpress.org/extend/plugins/syntax-highlighter-compress/
Website: http://www.phodana.de/wordpress/wp-plugin-syntax-highlighter-compress/