Most of my hard disks are made by Maxtor, but those are all 80GB or less. Newer, larger Maxtor disks seem to run very hot and noisy.
The only large disk I have is a 200GB Seagate SATA. It's usually fine, but when copying large files to or from an NTFS partition on it, the whole system freezes and requires a hard reset. I'm fairly sure it's a disk problem and not a mainboard issue, since the mainboard has been upgraded twice.
The only other SATA disk I bought was an 80GB Western Digital. It was DOA. The only way I could get it to even spin up was to plug it in after booting the system. I found out later that this is a common problem with WD's 80GB SATA disks.
I won't be buying any more SATA equipment for a good three years or so, until they finish working the bugs out. Some of my friends have large numbers of SATA disks that seem to work fine; they're mainly Maxtor or Hitachi disks.
I still have that 80GB WD lying around somewhere, because I forgot to RMA it until after the return period had expired. At some point, I'm going to 'destruct test' it with a claw hammer...