As far as reliability, I've had good luck with everything IBM
and Seagate, but I did on one occasion acquire a 'DeathStar' second
hand that sounded like it was ready to blow. My Samsung has also
been a great drive "so far", quiet and fast.
I'm surprised to hear about the Seagate SATA drives though...aren't the
actual drive mechanisms similar/identical to the PATA versions?