Yeah, I too ditched soda and carbonated/artifical beverages for the most part. I originally tried to go a full month without one, and it was easy and I felt better, so I really just don't drink 'em at all anymore unless I _really_ crave one... Or if I need something to mix with my rum. :-) I do prefer orange juice for the latter though.
As for feel-good food. I don't like "healthy" food so much as just "good" food. That is, a steak, baked potato, and a salad are so many times better than a burger or taco. Only drawback to leaving home... I miss home cooking.