Extracting arbitrary nested elements out of stories

	
Hi, folks.

I'd like to iterate through a list of stories and extract
specific  
elements from these stories, IE,

Story

   -> Pub date
   -> Title
   -> URI

   --> Page (contains...)

   ---> Paragraph 1 (of n)

   --> Meta Data (contains...)

   ---> Keyword #1 (of n)
   ---> Description

Etc.

It's easy to get the pub date, uri etc from the $story
element but I  
haven't found a really good way to extract the data nested
inside of  
the page & metadata elements. Does anyone have any
suggestions?

Thanks,

Michael