Can I install OS X 10.6 on a USB drive after the Mac HD dies?

I don't have a bootable backup HD for my Mac, nor a complete backup copy of my HD.
So, if the Mac hard drive suddenly fails one day, would I be able to still turn on the Mac, plug in a USB drive, insert the OS install CD, and install the OS on the USB to use the Mac???

Ok, thanks Can the USB be one of those cheap small flash drives (16GB or so)?

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Message was edited by: SilverSkyRat

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Can I install OS X 10.6 on a USB drive after the Mac HD dies?

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