ces and SebRad, thank you for the answers.
I intend a system like this:
i7-3770K, P8Z77-V DELUXE, four (16GB in total) Samsung 4GB 1.35V Low Profile, GIGABYTE GTX 680 "Windforce" (due to its power sockets) with Accelero Xtreme III, SB X-Fi Titanium HD, Samsung SSD 830 256GB, two (in RAID 1) WD Caviar Green 3TB, Pioneer BDR-207DBK, Antec P280 (top fan hole to be covered) with two NB M12-S1 (one for rear exhaust and one for front intake for video card) and Seasonic X-1050.
TR says Archon SB-E with TY-150 is 175 mm height. Antec says P280 has 170 mm of clearance for CPU Cooler.
I guess Genesis with two TY-150s is the winner but I don't know if the speed of these fans can be dropped to 600 RPM or less using PWM (TR says minimum is 900 RPM) and if they together fit in P280. On the other hand, stock Archon SB-E may suffer from all the problems mentioned. Therefore I think the best solution for ultra low noise is Genesis plus two 120~140 mm fan. So I think about Slip Stream 120 PWM.
Prolimatech is actually the spin off of a rogue team of heat sink engineers from Thermalright.
ces, just out of curiosity, do you think buying Prolimatech unethical?