Keeping it safe. Do you have a back up to safeguard your business?

I'm sure everyone would agree that one of the most important aspects of an IM'ers business is the information stored in his computer.

After all... If this was lost it would be a catastrophe.

I've always loved the idea of keeping my stuff backed up. The thing is: I want to carry everything around.

There's a lot of IM'ers who travel the world, and eventually, this will also be my goal.

I love the idea of a "cloud back-up" where I can keep all my important documents stored away.

I'd like to be able to have a lot less worry if my laptop gets stolen from my hotel room in tropicalbeachland.

Does anyone use a cloud based service which can provide this. I've had a look at a few but am unsure quite what it entails.

I'd love a secure service where I could be free of worry for ever. I keep some stuff on dropbox but it's not ideal.

Is there somewhere more secure that will store everything on my laptop, so if the unfortunate ever happens, I can just buy a new laptop or go to an internet cafe, and my soon to be valuable online business will be safe?

Cheers
fin