my Intel system uses a Thermaltake Level 10 GT case with the CPU cooler using (2) 120 mm fans ( push/pull )
and it sounds silent..........can not hear it run
cpu is an i7-2600k XFX 2gig HD6950 16 gig ram 2 SSD's and a 1.5 TB HD, and ASUS Xonar sound card...........
my other gaming rig......it's an AMD system was in my old Antec 900 case until I switched it to a new ( White version) Thermaltake Level 10 GT case it is an AMD Q975 3.6Ghz quadcore, 16 GB ram X-Fi creative pro sound card XFX 1GB HD6870 VC, SSD, WD 450 GB Velicoiraptor ( which actually blows the Intel system away ), also CPU cooler is a CPU cooler using (2) 120 mm fans ( push/pull )
both are deathly silent........ both run super cool..... whatever works for you........
NOTE: just be sure to do alot of research and study before buying any parts to build a new pc.....
TC