First off I can't believe out of all the techy dweebs and hardware geeks(meant in a nice way ) around here think sound would be an issue. Have you people not heard of <A HREF="http://www.dynamat.com/computer.htm" target="_new">Dynamat</A> before? Sound proof your case already... sheesh. I used left over material when I sound proofed my car but dynamat sells PC sound proofing kits for a very nice price. Apply it to every square centimeter inside your case cover that has bare metal and your all set for a very quite rig. Add that to the fact that 3rd party card makers will probably use there own quiter fan units this issue is NULL.