Hello Tom, at E-LANE we are currently doing work on this area, so we might also be interested on do this together. Here's what we have (which is learning content oriented).
1. For content producer use a word processing tool (openoffice) for creating the content, you can use word documents with openoffice as well.
2. That content can also be "saved as" docbook (a structured oriented markup)
3. Then use *reload* to create the IMS CP (and if you want, also the whole scorm file)
4. Using LORS library you can import that content into .LRN, and render the content to the end user.
* the neat thing about docbook is that you can use that structure to also render parts of your document in different ways or to easily integrate searchs among specific areas. (we still need to reflect the docbook in openacs, probably using CR, no specific plans by now)
Note: further development / feedback / ideas are needed to make this process easy / automatic.