DR Jeanne - If you primarily want to use your rice cooker to cook rice, just go to a Asian supermarket - or K-Mart - and buy the cheapest one you can find. You can find a small one for around $10-15. They're very easy to use, and basically "set it and forget it". Now, if you really want to get fancy and spend more than a couple more dollars on one with "fuzzy logic", well, more power to you. -Black & Decker also makes a very basic model.
*I've tried using my rice maker for something other than rice, and, frankly, I'd rather use the stove top for things like soups, stew and such. -And if you look closely at some "fancier" recipes, they call for cooking the ingredients "elsewhere", and then combining and finish cooking them in the rice cooker. Not really a "one pot wonder".