If you do a google image search for pet feeders you will get some good results....I was looking for a stainless steel one too last year, I had the same plastic concerns,,,never did get one, ,,,but I found a couple online - try the google search and you'll see......
what I have heard thou - is if you go with PetSafe5 (for example) each compartment is big enough to hold those little custard glass bowls, you know the ones? (clear or white) that way kitty wont be licking out of the plastic itself.