identifying good case fans

[max105]

I just went to a computer show and saw a bunch of fans that were pretty cheap there $3-4 for 80mm. I have always heard of panaflow for being quiet and sunon as pretty good fans. They didn't haev either one of these, but I still wanted to get a good fan. The show is coming back in about 2-3 weeks but i was wondering how I would be able to identify a good case fan. They all had a bunch of names that I've never heard of

 

[lhampel]

Sanyo Denki
Nidec

Are both good brands.

 

[max105]

I also have a Magik 80mm fan and a T&T 80mm fan. Are these any good? I'm debating whether or not i should replace them

 

[smp]

If it ain't broke, don't fix it. I got some sh!tty case fans.. they're loud, but man do they blow!!! If you're looking for quiet fans.. then I guess you have to go for the more expensive quality brands (panaflow) or whatever. I just use these things called 'supereds'.. (they're commy fans !!! j/k) They work great for me, and they push a lot of air, they are loud though, but not much louder than any other types of fans that i've heard. I think it's cool to have a loud machine, but that's just me. I never have had any experience with panaflows though.. probably they're good, everyone in the forums seems to think so. What I do, when I buy my fans.. I get someone at the place to test em for me. I feel how much they blow, and if they blow good, then I get em. I only payed 4.95 CND for my 80mm 'commy' fans..