Check out the new programmable slow cookers.
Set to Hi or Lo and key in time wanted and when time is over they switch to keep warm mode and some of them will shut off after four hours after switching to keep warm.
I have a 7 qt KitchenAid programmable and a 5 qt. Rival countdown smart pot and neither seem to have the over heating problem that some newer slow cookers have.
Also, the 6 1/2 qt Cuisinart should be a good one.
Hamilton beach also makes a 6 qt. programmable that sells for about $50.00.
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