It would be best to put the higher Joule rated power bar first. If you have enough outlets and can get by with just one strip and are looking for surge protection redundency, then I would suggest whole house protection. You can pick up a surge protector that mounts to your electrical panel for about $45 at Home Depot or Lowes. They are made by Intermatic. http://www.intermatic.com/?action=subcat&sid=137