Here is a picture of my setup.
It is a Uline wine cooler purchased off CL. 3 ft of 11" flexwatt, with a ac fan on a reastat. I intend to add a few more water bottles but I have nearly a couple gallons worth in there already as there are 8 bottles in the back you can't see,so heat sink shouldn't be a problem. Anyways, the change has occured without opening it up.