My 120mm intake/blowhole fans are Papst. They really move some air, and are great quality. They are made of metal with heavy duty plastic fan blades. I purchased 4 of them from a guy on the for sale forum awhile back, and compared to a lot other brands that I used, I think the Papst are the best. As far as Nidec goes, they are good fans also, and as Mikewarrior2 said, are easier to get than the Papst.