Crimso
Been looking at the same thing, have found two sets one were brand new but the others have just returned from 12 month trip around Oz,
and are still working well, for the outlay you would want a long life out of these, but SWMBO is keen on one and it means I don't have to get up every time some thing has to come out of the fridge so sounds like a good idea to me,
cheers Andy