Disaster Recovery. If your Hard drive got destroyed, how long would it take you to get back to current state?

For you personally, to the exact condition that your computer is in now (with a new Hard disk)
I personally have a week-old backup of my hard drive so I would only lose a week’s worth of information (much of that is saved online) and some of it could not be recovered (but is of low importance). Restoring my Hard Drive would take a couple of hours (including putting in a new drive) but those lost files would never be restored.

I have two hard drives in Raid 0. So i expect one day in the next few years they will somehow lose my data.

I keep an old hard drive from my last pc in my main one and use windows 7 to automatically back up to it.

But its still got loads for old files on it as i wanted to keep all my old stuff. Its been full for ages so backups rarely ever happen. It contains a system image and alot of programs as backups so there shouldn’t be a huge disaster if i lose my main drives. But there will definitely be alot of stuff that never got backed up. That will take a while to fix. I couldnt really guess at how long as i have no idea what exactly is not backed up.