Remote Backup Implementation.

I've been exploring two possibilities.

1) Have a backup server in the same physical location as the main servers. Then have automated backups occur, through a local network. The benefits of this are obviously a) No bandwidth fee's b) Total control over data instead of relying upon a third party c) Faster transfer speeds.

However, that doesn't really help when it comes to disaster recovery etc, so, some sort of remote solution would probably be best.

2) Have a remote server in a different datacentre.

There's two ways of doing this, either by renting a server in an a different datacentre, and having remote backups that way (probably with Rsync), OR paying for some third party service.

I'd be interested in your input on what you think would work best and be most cost effective.