Finding the right 80mm Fan?

Hi guys just wanderin if anyone has seen any kick *** 80mm fans with low noise and good output...Anyone found any fans under 34 db really fast?

SUNON 80x80x25mm, Ballbearing, Case Fan, DC 12V, 2.1W, 2900 RPM, 39.0 CFM, 32db 4-pin. MODEL: KD1208PTB2 Model#: KD1208PTB2 -OEM Special FedEx Saver Shipping $6.00

Thermaltake 80X80X25mm FAN, 2 Ball Bearing, 2900+/- 10% RPM, 37CFM 30db Air Flow, with 3pin/4pin adapter. Retail. Model#: TT-8025A-2B Special FedEx


Thermaltake SMART FAN. Variable Fan Speed Control, by temperature sensor. Fan Dimension: 80x80x25 mm. Two Ball Bearing. 3-Pin. FAN Speed Control Setting: 2900 rpm at 25°C~ . 5000 rpm at 35°C. Air Flow: 46 CFM 27db at 2900rpm. 53 CFM at 5000rpm 45db. Retail Box.

fans

Sunon makes a 48 cfm fan that's not too loud.

I can tolerate the thermaltake smart fan... even when the thermistor is removed and the fan is on full speed.

Any 50ish cfm fan should be good, but the one's I know of are:

Mechatronics, Thermal take, Sunon, YS Tech. And I'd buy them in that order.

Panflo makes some 46CFM at 38dbs, and Megatronics makes some 53CFM at 39dbs.

Do you think 40cfm would could my heatsink enough? I have 1 fan right next to cpu ( mount from ally case) which blows air accors it...I have and exhaus shrowd over the top of cpu to suck air out...92x.. and I have a power supply that sucks air from other side of cpu....will 40cfm work for me?

Megatronics...this spelled right? I can't find these fans anywhere. Do you guys have a link?

www.plycon.com sales them