Hello everyone! I need to describe the situation first before I post my question; I own three Mac systems in my home and one at my office, and all running the latest version of Mac OS X, the three that is in my home is connected to a WiFi "Home-Based" network which our ISP do not charge on transferring and/or downloading files from the internet, which is cool!! the problem is with the other one which is in my office, it is connected to a "Business-Based" network the charges fees on downloading files from the internet, my Q comes now; is there any kind of solution or software that can collect the update information from my Office Mac then transfer it to my home Mac via a flash memory -let as say a small file that contains updates lists for a targeted system- then download the updates that is specific to the office Mac from my home Mac to a flash drive again? I tried to write down a list with the required updates for my Office Mac after using the "Software Update" under the Apple main menu, but when I search for these updates from my home Mac, it never shows me what has been listed exactly on the office Mac!! It is frustrating to carry my office Mac to my home to keep it up-to-date; you agree. I'm looking forward for your response and thank you all "I love my Mac"