I was just about to buy an Airport Extreme when I stumbled upon a review of one. It said that one of the cons was that when connected to a USB hard drive, you could only transfer files of up to 1GB at a time. I've done some googling and found conflicting statements regarding this. As this would be my main purpose for the Airport Extreme, this would be a big issue. Can anyone confirm whether this is true and that only files of less than 1GB can be transfered over the network. Thanks in advance.