An article I wrote about building a data warehouse with Perl and MySQL just went up on O'Reilly's database site:
http://www.oreillynet.com/pub/a/databases/2007/04/12/building-a-data-warehouse-with-mysql-and-perl.html
I'd intended it for perl.com, but as the editor correctly pointed out it doesn't have a lot of Perl content. Take a look and let me know what you think (|grep -v 'mysql hate').
-sam