"Does this mean that my hard drive is doomed? Or will this process eventually clean up my hard drive?"
fsck is very good at clearing up file system problems. If you run fsck and it reports that all errors are fixed then you have a clean file system at that point. So, first of all are you running fsck when problems are reported? You have to run fsck against an unmounted file system. I recommend that you boot a rescue CD and run fsck against the problem partition. Be sure to run the fsck that corresponds to your file system type. fsck defaults to ext2, fsck.ext3 checks ext3, and so on. (see man fsck) (Also there is a rescue system on your Fedora install CD.)
If you have run fsck once to where your file system is clean and errors still keep cropping up then your problem is how is your file system being corrupted? One possible answer is that your hard drive is doomed but that is not the only possible answer.
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Be prepared. Create a LifeBoat CD.
http://users.rcn.com/srstites/LifeBo...home.page.html
Steve Stites