Which is the best method for migrating the content databases? This is for a
migration of MOSS 2007 on a single server (using SQL Server 2005) to
multiple servers (one being a dedicated SQL Server 2005).

1) Copy the content databases to the new SQL server and just use them
as they are

2) Export the data and then import into new content databases

Is there an article or other reference that details the pros and cons of
each?