Shaw, is this the same design/build day care center you had the lighting Q about?
If so, I'd suggest you take the time to walk through one or two of these places to see how they're set up, what the operators like and don't like etc so that when YOU design the device, luminaire (and switching) it actually can do what YOUR client wants from it.
Like in the lighting thread you'll find that good device placement will be entirely based on meeting their needs. (Plus the 2 or 3 the code calls for)
Good luck.