9 out of 10 reviews state that the TRUE-120 is the hands down winner. You cant argue with those results. Plus I can confirm the awesomeness of said CPU cooler due to first hand experience and the hours of research I put in while looking for the proper cooler for MY Q6600.
Of course the TRUE-120 does NOT come with a fan, you need to supply your own 120mm fan. For that I strongly suggest getting the SilenX iExtrema-Pro 120x38mm, 90CFM/18dBA fan:
90CFM @ a whisper quiet 18 dBA. You cant find a better ratio then that. With this fan on my TRUE-120, Im able to keep my Q6600 temps in check at 3.6GHz
if you plan on only running 3 to 3.2GHz, this is way more then enough cooling power for you AND it fits perfectly into your need of a quiet running PC.
Ultra M998 mid-ATX case
SilenX 650W 14dB SLI Power Supply Unit
Nvidia/EVGA 780i tri-SLi motherboard
Intel Q6600 quad core @ 3.4GHz (3.6 for benchmarking)
2GB OCZ ReaperX HPC Edition PC9200 DDR2 RAM (2x1GB)
2x EVGA 9600GT SC in SLI (750/1100Mhz over-clock)
2x WD Raptor HDD (1x 36GB; 1x 74GB)
Samsung Spinpoint HDD (250GB)
Thermalright TRUE-120 w/ dual 120mm fans in push-pull config.
Windows Vista Home Professional w/ SP1 (32-bit)
Samsung SyncMaster 206BW 20" LCD display (1680x1050)
3DMark06: 17,420 Points