are you talkin about turning your computer into a space heater?
i think to do that you could put a peltier with a heatsink on it on the outside of the case...and hook it up to an old at power supply.
that would give off a bit o heat.
also, another thing you could do is make an air chillerz...
to do that, you put a heatsink on the cold side of the peltier, and cut a hole the size of the peltier in the case.
well, basically, you sandwich the peltier with heatsinks, fans if you want to maximize it, and then mount it with the cold side inside the case.
that would put off some heat in your room, and cool off the inside of the case.
here is a link to how to make one.
<A HREF="http://www.hardwareoc.com/airchillerz.php" target="_new">http://www.hardwareoc.com/airchillerz.php</A>
maybe that will work for you!
or you could always just get a space heater...
-DAvid
-Live, Learn, then build your own computer!-