CPU: Either a CM 212+ for non-passive, or a Scythe Orochi for pure passive.
VGA: Either a TRad/Arctic-cooling twin turbo for non-passive, HR-03 series for pure passive (non-highend graphics though)
Fans: Nexus, Gelid, Arctic-cooling and Noctua all make super-silent fans.
I personally had an old system that was:
939 4000+ - passive w/ orochi
3850 - passive w/ HR-03
2x Nexus 120mm case fans Only.
