Well, the inevitable has eventually happened - My 1TB Lacie Network Space has finally died, which considering the interface has never worked well, is probably a blessing.
I have got the disk out the the enclosure, and popped it in a USB caddy, and plugged it in to my PC. It has several partitions in disk manager, none of which windows appears to be able to read or mount. What are my chances of getting my data back (or if nothing else, confirming what I hope, in that there wasn't anything I don't have elsewhere)?
The disk itself appears fine, it looks to be just the Lacie NAS caddy which was taken out by last night's power spike.
If it helps, I also have a Mac I can plug the USB caddy into, the PC was just first choice as it's what the USB enclosure's already plugged into