Do you have a decent deli in your area? Most mass-market commercial fat-free or low-fat cheese sucks, but I've found some good ones made in small batches by local dairies.
Michigan? any Amish or Mennonites or general Germanic-type people in Michigan? If you like stinky drippy old cheese, you might like "cook cheese". It's made from skim milk, and tastes like the inside of a Brie. The texture is a bit weird, but included in other dishes, it really adds flavour. (Very good in egg white omelettes.)
Another good one, reasonably low in fat, is Danbo cheese, from Denmark. There's a low-fat version available which has about 60 cals per ounce at 20% fat, which isn't bad. A bit more "cheeselike" in texture, though still fairly soft, and also very tasty.
Another option is Parmesan. Shell out the cash, and buy a hunk of the real imported Italian stuff. It's only 25 cals a tablespoon -- sure, most of those are fat, but if it's the genuine deal, you only need a bit. Don't include it in things, though. Sprinkle on top of dishes at the end of cooking, and melt or broil lightly if desired. Way more cheese impact than you'd expect.
Velveeta. Bazooka-barf. I thought we were talking about cheese, here.