AC,
Could you talk to DW about adding in a second enclosure field, here is why....
I land on a page that I want to submit to NANN. I click the Bookmarklet. At that point I have the basics of my submission.
Lately, I have been adding on a Text to Speech version of the same story. Last month I was adding on a PDF version of the story. Now that I use Juice to funnel the feeds into iTunes. I see a need to add the PDF and MP3 files but only have one enclosure field available to me. Once the files are downloaded and imported into iTunes, I can then sync them to my iPod touch. This gives me the the ability to see/read the story and to listen to the story. I don't see any harm to DW or the Servers if a second enclosure field gets added. The storage requirements may double if subject to heavy usage.
Kick it around in your head and with DW.
Kelly