Here is sort of thing you may look for instead of the vapochill controller:
http://cgi.ebay.com/ws/eBayISAPI.dll...tem=1767762283
Link with a normally closed relay across reset button; when the temp gets where you like it then the relay will trip and the PC will boot.
Keep your eyes peeled and you might find a cheaper one.
On other hand you might be able to get a controller from asetek via a us distributor. Whichever is cheaper...