Extreme server cooling

Definitely look into water cooling. Since you're from the USA as your profile suggests, newegg is your new best friend. You can buy complete kits to make things easier, or a seperate CPU block and hard drive enclosures. Whatever works best and fits in the budget.

I think water cooling and messing with loud noisy fans are all band-aids to the solution. Also watercooling is a hassle when it leaks. (ask me how i know)

If you have this much hardware that needs proper, reliable cooling, you need to change your case/chassis.

Get the antec 1200. That will have plenty of cooling, plus not sound like a jet engine. I upgraded to this from an antec P182 and this has orders of magnitude more cooling capacity. The massive 200mm fan on top doesn't hurt either!

If you want a quiet solution I would recommend water cooling. As far as I know there's no noise, but I've never done it myself. Its supposed to be a very efficient way of cooling.

If you're looking at buying some equipment I would check out Xoxide.

Edit: In one of your comments you said you're using Socket F

Hopefully the Swiftech Apogee GT Water Block can cater for your needs then.. Unfortunately no compatibility info but it does say it supports Socket F