Try this... http://www.smarthomeusa.com/Shop/Climate/
Or this is a telephone controlled unit. http://www.talkingthermostats.com/telephone.shtml
There are probably more out there, that was what came up with a quick google search.
I did the google search thing, there is such a plethora of units out there, I want to see if anyone has experiance with them before I plunk out the fundage $$$