I'm a new Mac user and here's what I'm planning for my backup strategy: 1.) I have a 500GB internal HDD in my 2011 mac mini which holds all my important stuff (iTunes library, personal photos/movies, tax documents, etc.). 2.) I plan to use FW800 to attach a dual HDD external enclosure with total storage of 2TB (1TB + 1TB). This external drive will be the destination for Time Machine backups. 3.) On a weekly or monthly basis, I plan to connect a separate 1TB external HDD and use Carbon Copy Cloner to create a clone of the mac mini's 500GB HDD. The cloned HDD will be kept offsite. Any suggestions to improve this backup strategy? Would there be any good reason to set up the dual HDD enclosure (the Time Machine backup destination) in RAID 1 (mirroring)? Thanks.