Hmm, IBMs hard drives has almost always been good, there were one series that was less than stellar, and the resent stuff is about faulty harddrives that they knowingly shipped out anyway. My IBM drives have always performed like a charm so i will continue with Hitachi. However one manufacturer that i have had several problems with are Western Digital so i will never buy their crap again.
In the end i guess it is up to personal experiences. too bad about your problems tough.