For extra points, I would get a LED Case fan
Those are pretty nifty.

http://www.frontierpc.com/ProductDetails.aspx?ProductID=950014873&name=Antec %20Blue%20LED%20Case%20Fan



I also came across this good idea some time ago and thought maybe somehow you can anticipate this idea with a amp.

But then I grabbed a pepsi and watched futurama and forgot about the whole thing.

till I brought it up just now.

http://www.youtube.com/watch?v=mo5eZ9VljOk&feature=related
http://www.youtube.com/watch?v=PtufuXLvOok&feature=related


I don't think mineral water conducts...However it would be a bit messy...

 

This is from Stinger but Princess Auto usually has them in the last row with the surplus stuff.