Could both my internal drives be going bad at once?

i posted an issue a moment ago about a write protection warning, which has never happened. so i run disk utility on this particular drive - and it stops half way through with a random error!
ok, so i start dumping files onto my other internal drive like a mad man. and what do you know? when i try and open the particular folder on the backup drive which holds the data i just copied over, my system stalls for about 10 seconds and then apparently restarts my finder!
could it be that both my drives are going bad at once? what could be causing this madness. i ran disk utility on the backup drive and it went without a hitch, but solved nothing.
please help!

Save your contents of your user folders to a external drive that you know that works in addition to the other internal. Especially your iTunes folder and User/name/Library/Safari & Mail folders contents.
You might have something going wrong with your boot drive, it could be a bad sector, a bad OS install, corrupted OS file who the heck knows, but it's looking like your going to need to Erase with Zero option in DU (to eliminate bad sectors) and reinstall Tiger fresh, use your same name, drive name and password, update, install apps from fresh sources (don't use Migration Assistant, doesn't do copy protection and copies blindly) and copy those folders mentioned above back to the same location.
If that doesn't work, it could be a mechanical problem, which the drive needs to be replaced under warranty or AppleCare. Give them a call and they can send you a new one and you can replace it yourself, holding your CC hostage until they receive the bad one.
Later once your back up and running, learn to clone your boot drive to a external drive just for cases like this. It's boot-able, you can fix the original drive, you can copy files over and just erase and reverse clone.
It will save your bacon. Read my text docs.
http://homepage.mac.com/hogfish
Oh if you do a fresh install, might as well do Tiger and iLife 06 in the process.

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