Hi there, I'm just back from the Apple store where they advised me that the best way to transfer 1.5TB of data from one time capsule to another was to connect them both to my wireless modem/router. They said to make sure that both Time Capsules were mounted on the desktop and to simply drag and drop the files over. The Genius said that the data would transfer through the LAN cables and not WiFi. However, it's quoting 15 hours to transfer 510GB. Also, when I shut down my MacBook Pro to take it to a friends with me when I got home I found the data transfer had stopped. This suggests that the data is going over WiFi after all. After all, you would think that if the data was being transferred by cable then why would my laptop be needed for this to happen? Or, am I missing something? Liam.