http://www.sitstay.com/pedi/
This is an online pedigree generator. What would be handy (and would be great for geneology freaks too! No offense... ;) Filling in all the details creates a 1-page, 3-4 generation pedigree. The module I had in mind would have a search function, image link/attachment, and of course user-submission. All data would reside in the database, which gives it a boost past all these html based noes. It would be a perfect addition to Xoops!
Marc