heh, this forum seems pretty sparsely populated huh?
My system is far from silent... its quiet, but definitely not silent. Given the amount of noise where I live, silent is a pipe dream anyway (Hong Kong). So yeah, its all relative. If you are curious my setup includes:
Cosmos 1000 case
Q6600 @ 3600
and Cooling stuff:
XSPC 140x3 (actually direct from the factory so its not actually branded XSPC, but thats what it is)
655 Vario pump
Swiftech GTZ CPU block
Swiftech MCW60 GPU block
Yate Loon fans throughout.
Silverstone CMD01 fan controller (which I am *very* impressed with. Full software solution, reads temp sensors etc... and available from Amazon for 17 USD if you are in the US).
So yeah, its overclocked quite a bit, with high ambient temps but fans at < 1000 rpm.... so quiet, not silent