How do I list all tables in all databases in SQL Server in a single result set?

Question

I am looking for T-SQL code to list all tables in all databases in SQL Server (at least in SS2005 and SS2008; would be nice to also apply to SS2000). The catch, however, is

Answer 1

I'm pretty sure you'll have to loop through the list of databases and then list each table. You should be able to union them together.