I did the "stew" thing as well w/Sheba for a while. She never used to touch her water dish, so water in the wet food it was.
Now with our 2nd cat, she has gone and totally altered her eating/drinking habits. She eats much more dry (we used to leave it around for free feeding, but now w/doogie who eats it like caviar, it is a measured part of their meals) and now drinks more water--most likely b/c she needs more moisture b/c of the dry food. Also, we often feed Merrick food, which really seems to have a higher amount of liquid--so I'm no longer that worried about water intake.
Doogie, our "puppy" cat, is the wierd one though and yesterday I caught him drinking out of the toilet--eww, time to keep the lid down!!