Heheh. Yeah I've heard of services like that, but I never actually thought I might benefit from it. Like... over a year ago, it might not have been such a big deal.
Though, really if I think about it, it doesn't seem SO tragic. I may loose a lot of files, yes, but most of it is already finished and on SL. The only thing that I was really doing with those old Blender files was using them for tutorials, and I can make new things for those. I can't think of anything non-recoverable on my hard drive that I can't live without.
So.. in summary. I will live.
Hopefully I'll learn to back things up by some method or another, but I will live.