Yogurt Maker: are there any good ones where you don't have to heat the milk first, before...?!

This seems to be exactly what you are looking for

http://www.amazon.com/Miracle-Milk-Carto…

Miracle Milk Carton Yogurt Maker

Review from Amazon:

I bought this yogurt maker, because I wanted something easy--and it is. The other yogurt makers require you to heat milk in a pan, cool it down, and then mix in the starter and transfer the mixture to one or more containers before inserting them into the machine. With this one, you just stir or shake the starter into a one quart carton (or any similarly sized container) of milk, put it in the machine, and plug it in for about 12 hours.

The yogurt comes out tasting very good. Homemade yogurt does tend to come out thinner than commercial yogurts, especially if you make it with one or two percent milk. To remedy this, you can add powdered milk at the same time that you are mixing in the starter. (Some people use other thickeners, such as pectin.) Another option is to mix in some "yogurt cheese" after the yogurt is made. I recently bought the Cuisipro Donvier Yogurt Cheese Maker from Amazon. It works very well and the resulting yogurt cheese can be stored in the same (included) tupperware container that is used to strain the yogurt. The cheese maker has a washable filter that separates the yogurt curds from the whey. If you want to do this on the cheap, you can just use a coffee cone/filter and strain into a container. Over the course of 4-8 hours, you end up with something the consistency of cream cheese. You can add some of this to your next batch of yogurt as a thickener. Alternatively, you can use it as a tasty substitute for sour cream or cream cheese.

You can also make great smoothies without adding any thickeners. I purchased my machine directly from the 877myjuicer site, because for some reason it cheaper that way than buying it from them through Amazon. I also bought a couple of Rubbermaid 32 oz. "Sipp'N Sport Chug Style" bottles from a local store. With the lid off, these inexpensive bottles fit perfectly in the machine, and they store the yogurt nicely in the refrigerator when they are ready. With the bottles, I can use milk from the same gallon containers we use for other purposes rather than having to buy one quart cartons of milk specifically for making yogurt.

http://www.amazon.com/Miracle-Milk-Carto…

I have two suggestions:

1: Go to http://www.bedbathandbeyond.com and see if they have Yogurt Makers.

2: I heard somewhere about using your slow-cooker to make yogurt. Try Googling "Slow-cooker yogurt." You could also look on http://www.allrecipes.com for slow-cooker yogurt.