I am just trying to figure out an onsite backup strategy using the above NAS. I have a MacBook Pro with 250GB, but will upgrade shortly to a new model with 500GB - I was considering putting 2x 1TB in the Synology in RAID 1 format. Then partitioning the drives down the middle and using 1 partition for a SuperDuper type clone and the other for Time Machine backups - mirrored across the 2 drives. The most critical things I am backing up are things like photos and family home movies, music and the usual personal documents etc, but important still. I will probably use a cloud type service for offsite. Would a set up like this make sense for my needs? Thanks.