|Project:||FCKeditor - WYSIWYG HTML editor|
|Component:||File browser support|
See http://drupal.org/node/212663 for a start.
I envision it as an option in the configuration that is enable when the CKFinder files are found. Checking the checkbox would then enable it for FCKEditor.
This might need to be its own module, similar to how IMCE works.