I really love my ATCS 840 but I don't love the 230mm fans. They're too loud for my taste, the problem is, it's really hard to find a good horizontal fan.
I have a GentleTyphoon on the bottom right now next to the power supply and it didn't feel like it was pushing much air at all. Which is strange since it's a fluid bearing and shouldn't have any problems. Yarg.
On the plus side, the ATCS 840 actually lowered my load temps by 3C versus my OPEN AIR setup! I was shocked to see that and quite pleased
edit: Oh yeah I should mention that I flipped my exhaust fan around so it's intaking directly into the push fan on my Venomous X. And the pull fan is hopefully releasing the hot air where it's being sucked up by the top fans. So far it's been working wonderfully.Edited by LarsMarkelson - 2/1/10 at 4:19pm