I've been a big fan of those USB hard drives that have popped up with the included backup software. On a high-speed USB connection - it's about as fast as it gets without getting ludicrously expensive. Full/differential backups, scheduler, etc... All for the price of the hard drive to backup to.
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Your lack of planning does not constitute an emergency on my part...unless you're my manager...or a director and above...or a really loud-spoken end-user..All right - what was my emergency again?