The below informations will help you a lot when you start managing the SharePoint server farm of your organization since failure is not an option for us (IT) !
This URL points to a page on TECHNET that may interest you:
How to perform a disaster recovery operation of Windows SharePoint Services 2.0 Companyweb and Windows SharePoint Services 2.0 databases?
Move SharePoint sites across server farm
I thought this Help and How-to article from Microsoft(R) Office Online might interest you. "Back up, restore, or move a SharePoint site"