Not totally sure if this is the right forum - it could go in the hardware/peripherals forum as well. Apologies if it should. Just waiting for my first Mac to be delivered (24" iMac) which will mainly be used for photography work (as well as web surfing, etc ). I'll be running Lightroom which I understand can be setup to backup shots to another drive when importing. What I intend to get are two external drives, one is my photo-backup, the other will be used for Time Machine which will also perform backups of my pictures folders and the catalog info. Is this a suitable strategy? Might look at burning to DVD as well.