Has anyone tried switching the fan on the original heatsink that comes with the P4? If so, what kind of results did you get? I'm building a PC for my little brother and thought I might makes things a little more colorful for him with an LED fan of some sort, but as I have not actually put anything together since the bloody case has yet to arrive, I'm not sure what, if any kind of fan would be appropriate. Since this blasted stock HSF did not arrive with any specs.