I have the servers at my company placed in a closet that is too small
without proper ventilation. If something goes wrong the room gets
way to hot. I'd like to have a power strip with thermostat shut off.
That is, if the room gets too hot I want all the equipment to get shut
off. Its not necessary that the shutdown be graceful, I just want the
power cut off. I'd like to be able to set the temperature at which this occurs
but I'll settle for whichever product is available. 
Where can I find such a thing to buy?

I think the best choice for you would be the Tempstat from
greenair.com. Here is the URL:

http://www.greenair.com/tempstat.htm

I work in the industrial automation industry as a
technician/consultant and can tell you that most of the products out
there are going to be very expensive and complicated. I found the
tempstat to be a good alternative that is ready out of the box for
your application.

Here is the URL for the dealers:

http://www.greenair.com/dealer-us.htm

Consult the one closest to you!

perfect.. thank you.