I have a new 1TB TC connected at the moment only via wired gigabit ethernet and I'm just doing my first backup of 337GB. I started the backup last night and so far it's done 290GB and that has taken 10 hours - a hell of a lot longer than I was expecting. Gigabit ethernet ideally should run at >100MB/s so even allowing for network overheads, the bottleneck ought to be the hard drive speed. Even at conservative estimates, this should give a transfer rate of >40MB/s which would make that backup take 140 minutes, as it does with a an external firewire drive. It seems to be running at more like 8MB/s - why so slow? I could understand if this was running over wireless, but this is plugged straight in to the box with wireless disabled.