Is there a way to have a complete, duplicate, operational OS-X system on another Apple machine (as a backup)? A few weeks ago our Mac Pro was suddenly down. Almost everything was backed up, and it was covered by Apple Care but the machine was not available again for about three weeks. We used a much older MacBook to stumble thru in the meantime, but it was difficult and business suffered. Would it be possible to purchase a new MacMini, and duplicate the systems somehow? Would this need to be via Snow Leopard Server? I understand that some third party apps may have license issues, and some setup parameters may have to be changed, but how well would everything else function? Presumably, this is a very common business issue, with existing solutions. Even for a one or two person business. Thanks.