I have 2x Seagate 80GB going still now
I bought a Black 500GB WD and it was RMA'ed 2x then I auctioned it as a spare.

Seagate 500GB did have that firmware issue but it's fixed with the update. One of the HD wasn't updated and had to be RMA'ed.

I have 3 HDDs, 2 internal backed to each other and one external in my drawer. I don't expect HDs to work faultless.