Canon makes several cameras that still use AAs.
The Canon PowerShot SX20-IS may be more camera than you are looking for, but it is a 12mp camera that uses 4xAAs, has a 28-560mm 20X zoom and weighs around 19oz.
Smaller Canon's that don't have the wide-angle lens, but that use 2xAAs, include the A1100-IS, A2000-IS, Powershot E1, and the new A480 (cheapest model).
The best place I know of to do some of your own research is Imaging Resource ( http://imaging-resource.com/ )
They have a "compare models" feature on the left side-nav that will allow you to do a pretty in-depth search, and the reviews there are the best of any site on the Web. They don't review every camera made, but they do the best job.