Move database to remote serveur with SP1

We a already have installed EminentWare Extention pack with alll role and the database the same serveur. Since SP1 now gives us the possibility to install database on a remotre SQL serveur, what is the best upgrade path to move our database? Is it better to reinstall a new serveur with a remote database a then exporte all de date from the old serveur? Can we simply upgrade ou  current server with SP1 an than move our database? Do you have documentation about it?