well i was a fan of seagates, but my last one was really noisey, may have been a bad one though as it didn't last 5 minutes, although my ide seagate is still going strong (touch wood) and still quiet.

my new sata drive is a samsung, it's been excellent so far, easily as quiet as seagates, if not quieter, plus i know loads of people who have been running them for years with no problems.

so i'd personally go with samsung or seagate