Cooling Controller

[Okguy]

I'm looking for some cheaper controller options for cooling my tank. I'd like to find a controller that I can set to turn my fans on when a certain temperature in my tank is reached. My tank is pretty well automated and this is the last thing I need to control a little better.

Right now I have a fan on a timer that turns on when my Halides come on and turns off when the Halides go out. This option currently leaves me reasonably dissatisfied as it over-cools in the winter and doesn't do enough cooling in the summer.

Right now the cheapest option I can find is the Ranco.

http://www.rancoetc.com/ranco-etc111...ller-p-87.html

Which I can get shipped to me for $99 US. I'd like to find something a little less expensive if I can. Mseepman was helping me search this morning and came across this (thanks Mark!):

http://cgi.ebay.com/ws/eBayISAPI.dll...:X:RTQ:US:1123

Which is perfect price wise but it unfortunately only works for heating. Anybody have any other ideas?

Thanks,

Kevin