jab-tech.com
I highly recomend them.
Anyhow OP b4 you start buying, let me tell you how you buy fans.
There are two things you need to look at when looking at a fan.
1. Static Pressure - This is how well the fan operates when something is obstructing it, like a heat sink for example.
2. CFM - this messures how much air the fan pushes per min.
Now you would think that the two top is related, they are, but not exactly. There are fans which have excellent CFM, but shitty Static. These kinds of fan make the best case fans for pushing air in and outside your case. However the moment something goes in front, you'll lose all your performance out of the fan.
The other Static Pressure, is what you concentrate on when buying a fan for a heat sink, or when you have a fan filter up front.
Now for a rear fan for example, it has no obstructions. Its free flowing, and very open. This fan would be an ideal spot for a high cfm fan. Something that pushes great air.
However up front, i betcha you have something blocking. Or its not as free flowing. In this case, you really want a great static pressure fan.
For great static pressure fans, i recomend, Zalman F3 series, or the scythe Ultra Kaze, However its very loud unless you downvolt them. (fan controller)
For CFM You cant go wrong with the scythe slipstreams.
If your rich, and you dont mind poping 25 each for a fan, the best across the board is the ever so rare sanyo denki Sanaces. I believe zepper has some for sale if you truely want the king of all fans.
Anyhow here is my recomendations, if your on a budget, you cant go wrong with these guys. They have the best performance/price ratio out of ALL the fans you'll ever see.
http://www.jab-tech.com/YATE-L...igh-Speed-pr-3771.html
These are the ultra kaze's:
http://www.jab-tech.com/Scythe...-Fan-High-pr-3940.html
Here is the Panflo, however i recomend the ultra kaze's over this one:
http://www.jab-tech.com/Panafl...A12G12L1A-pr-2686.html
This is the Zalman F3:
http://www.jab-tech.com/Zalman...120mm-Fan-pr-3443.html
Here is the scythe Slip Stream:
http://www.jab-tech.com/Scythe...H-1900rpm-pr-3945.html
I highly recomend this controler:
http://www.jab-tech.com/Sunbea...Kit-BLACK-pr-2530.html
However this is what i use, and its very nice.
http://www.jab-tech.com/Scythe...ler-Black-pr-4080.html
You see now why i love jab-tech?