Quiet 40 mm Case Fan?

This isn't really a Cakewalk related question, but I know there are a lot of experienced system builders on this site. I'm looking for a 40 mm fan (12V) to replace a noisy fan in a DVR. Ideally, it should be reasonably quiet and long lasting.

My searches have turned up lots of fans, mostly with names I've never heard of. I'd really appreciate it if someone could point me toward a reliable brand and a good place to buy from. Thanks in advance.