The knowledgeable folks over at Windows IT Pro offer a great resource for SQL Server Express users: their twice-monthly free newsletter, SQL Server 2005 Express UPDATE. They have feature articles, community feedback, whitepapers, and SQL Server Express-related events and resources.
This week's featured articles covered upgrading from MSDE and attaching/detaching databases.
Download SQL Server 2005 Express UPDATE newletter here.
SQL Server Express