We are installing this in our media room in another month or so. Make sure you go with one that has the venting in the FRONT or they tend to "go up" quicker. You get what you pay for with refrigerators.
If venting is in the back but there is plenty of "extra" room in the back would that still create a heat build up and make it run more? I was thinking that even with went in the back I would create venting space on the bottom for the air to go out from with flow to back and then hopefully out in the front? Over the weekend I found that Magic Chef - 3.6 Cu. Ft. seems to be pretty quite with good reviews and pretty cheap.
It is a refrigerator, but maybe that is a better option anyway?