p.s. I forgot one caveat of sp_Send_DBMail... the default size of any attachment is only 1MB. Please lookup sp_Send_DBMail in "Books Online" and look for @file_attachments. according to BoL, someone will have to make the onetime effort to run the "Database Mail Configuration Wizard" to change that default.
--Jeff Moden
Change is inevitable... Change for the better is not.