(yes, I remember Travan, still have the tapes in the loft!)

I use SuperDuper for Mac, brilliant program - OK, so my iBook hard drive is only 40 GB or some Jurassic size, but it holds all my e-stuff since about 1980 (I don't use an iPod, or take many digital pics). So I bought an 80GB external USB drive and a 32GB Flash stick, and do a full backup to each once using SuperDuper (maybe 8 hours a pop), then a daily incremental alternately to each, takes maybe 30 minutes with auto-shutdown at the end so it's click the button and go to bed.

House sets on fire, I grab the USB stick and I'm good.