i ended up buying the Seagate Barracuda 7200.7 drive, 80GB, SATA.
http://www.seagate.com/cda/products/dis ... 45,00.html
all that warranty stuff didn't really apply, there's no "advanced replacement" or anything like.
also, the Seagate has here 5 years warranty, but it's not quite accurate. it's 3 years, the last 2 if the drive goes bad you only get a (partial?) refund for buying another drive (Seagate of course).
NCQ - don't care about that, the motherboard doesn't support it, and anyway for a single-user desktop machine it apparently gives you nothing (according to an article at storagereview).
performance wise - Slim said, "Any perceived performances determined from benchmarking are usually not realized by the typical user." so i guess (hope?) it won't be any less speedy than the WD would have been (i was deliberating between these 2 mainly).
and the Seagate is supposed to be quiet.
i hope the buzzing sound Han mentioned won't bother me.
thanks to everyone for their assistance, recommendations, opinions.
One Ring to rule them all, One Ring to find them,
One Ring to bring them all and in the darkness bind them
In the land of Mordor, where the Shadows lie
M.C. Escher - Reptilien