i just found this box surfing the web and it is a hell of a casemod, i got greedgreen and woke my mom up by yelling "w00t, fuck, w00t" all the time when i surfed through the page.
the guy who did this build a system that controls every fan, reeds every fu#+!n temp, dectects leakage of the watercooling and even pages him if something goes wrong.
you should really have a look at this one if you´re into casemoddin´  
http://www.aasdcat.com/rstaph/sc3/index.html