Hi, David,
There is a plugin for CKeditor which can implement famous SyntaxHighlighter script marking-syntax to highlight source codes in the article. I think this is a great plugin to be added into your ceditCKEditor.
This plugin was developed by a Chinese programmer at
www.lurenfake.com/ . He does not restrict the distribution of this plugin. So you can make it a part of your editor.
Joomla users need to install another plugin Joomler SyntaxHighlighter to make it fully in effect. Without this plugin, those code will only shown up as plain code, as PRE tags do.
I want to manually add this plugin, but I don't know how to create a new editor toolbar button for it on your editor. So please add it yourself and all ceditCKEditor users will enjoy this.
Thanks.