Have you tried soy milk? I never thought I'd see the day that I'd try something like that, but I really liked it. My son and daughter-in-love got me started on it. It's suppose to help with cholesterol...but I'm not sure if your tummy could take it.
I've thought about soy milk because I really miss being able to eat cereal as a snack or for dinner. What does soy milk taste like?