In terms of speed/performance the storage review site is a goodie :
http://storagereview.com . Something I don't like about them is that they
don't always reflect models available in Europe and also don't provide noise
level tests while the drive heads are seeking/reading/writing - i.e. not
just under idle. Often the idle noise is just the tip of the iceberg with
seek noise far exceeding this so idle noise readings don't show the whole
picture. I remember reading a review of several different drives including a
Samsung P80 drive like my own. Only idle noises were shown and the Samsung
wasn't the quietest but then under seek conditions its noise level only
increases very slightly whereas all the others had much more pronounced
noise increases (I also have the Maxtor drive listed in the same review and
it sounds like there's a little jack hammer in there during seeks - hardly
fair). I've had several Samsung drives now and they've all been
exceptionally quiet - particularly during activity. With a 3 year warranty
they're a great choice for home theatre PCs but the only problem is they
currently only go up to 160 GB.