Thanks David. You've slightly confused me as I'm not too familiar with the Amazon set up nor CloudBerry.. so a couple of questions:

With the CloudBerry server software (just for files/directories not SQL server or the os) - will it install/run ok on a cloud server (wither Windows 2012 or 2008R2)?

And with the Amazon storage - perhaps I'd just start with S3 to keep it simple whilst I familiarise myself - I can't imagine its too expensive (or is there a free Amazon option that might suffice?).

I'm looking at around 20gb I estimate, which will be backed up over the period of a week, then rotated/overwritten.