I recently took a 7200rpm 1TB Barracuda drive and put it in a Firewire/USB enclosure. The drive itself works great however... Everytime I plug either the USB or Firewire cable into my macbook... My Airport goes whacky and loses connection with my router. The Drive doesn't even have to be on. The drive shows up and works fine... just no wifi access. At first I thought there was a conflict with the firewire port but it does this with USB too (with the drive turned off even). I also have a couple of 2.5" drives powered by USB only which don't cause this behavior. I wonder what's up? Now... in the spirit of "full disclosure", I did do a jumper change on this barracuda drive to increase burst speed. This drive came out of a vista machine that way and worked just fine. Keep in mind though, this drive doesn't have to even be powered on to cause the Airport conflict.