I now have my Airport Extreme Base Station and have a Western Digital 500GB Hard Drive attached to it. One of the first things I did is copy my important files over to this hard drive and plan to do this on a weekly basis as a back up copy. Overall this process went very well. The only problem I did run into is some files in the directory Microsoft User Data that won't copy. These files are Entourage files so are important but they are scripts that have a / in them. it seems these are files that for some reason won't copy over. Is there a way around this? I could just skip these files but it makes it more complicated than simply dragging the Documents folder over to the airdisk.