Snippet to Allow users to submit articles/documents

Does a Snippet to Allow users to submit articles/documents exist already or would something like that be part of an existing snippet?
I would expect moderation and review abilites to available in the snippet.

Thanks

http://modxcms.com/NewsManager-810.html

Thanks very much (again).

The site should have a "Fastest response" contest - so far you are in the lead!