I have previously posted on using Word to create and maintain Moodle Quiz questions, and in my latest installment, I have added what I think is a very nice feature, a built-in question preview within Word itself.
When editing a question in a Word table, you can click a button, and it will upload and import the question, and show you the question preview window in a Word dialog box, so you can check how it works.
Self-installing templates for Word 2003 and 2007
are available at http://www.moodle2word.net/
Perhaps you'd be willing to place or allow placing of the files someplace that does not require an additional account?
Whoops, slight wrinkle - the preview facility doesn't work properly on the public site, although it was fine on my internal test site. I'll have to take another look at it in the morning.
I think the initial preview is working now, but if you click the 'Submit' button in the preview, you may be prompted to log in. Do so with l/p mcqstudent/mcq, and then run the preview again.