Overall Samsung has done a great job at producing a fast and quiet hard drive. The Samsung really killed my Maxtor, which I wasn't expecting. Price wise, it isn't too expensive for a 40GB hard drive.
As far as the reliability of the hard drive, I will updated this review if anything happens, but from what I have seen so far it may be a while.
Thanks to Stalin over at Samsung for sending us a test unit, keep an eye out for more products from the fine folks over there.