[eluser]Phil Sturgeon[/eluser]
I really think you are overcomplicating things by listing parameters. The URL is the only thing people will see and even that is a bit much.
If we have a field that has a simplified regex then we can easily slap a GUI over the top of it at a later date. Creating all sorts of crazy new syntax is just making life more difficult for everyone.
Could you PM me your solution to the TinyMCE fix? I have a standardized way of creating TinyMCE instances so I can configure the "wysiwyg-advanced" instance to handle URL's with those config options. That will fix it for all larger TinyMCE boxes in news, pages, products, etc.