I have this, just not with the firewire.
Yesterday, I booted up my PC and I noticed my external HD wasn't showing up in My Computer or in Disk Management. I checked the cable and changed it, no problem there and made sure the HD was turned on. It turned on fine and I can hear it spinning, then it goes into idle. There is no 'windows bleep' when it is plugged in.
I tried it on my laptop and the same thing, it just isn't showing up. It worked fine on Friday.
Any suggestions? Ideally I need the data off it then I'll buy 2 1TB HDs. I have some data backed up (160GB) but I'd like to get as much off as possible.
Thanks in advance.