Much better now...thanks. My brain hurt after the first iteration....
Other than bandwidth considerations and potential security issues, it's about as easy as it looks. Access-Points should plug into a hub/switch with a straight-through cable.
You should make sure your APs have some facility for multi-zone networking or wireless bridging. If they're not multi-zone (or wireless bridge) capable, and you have two (or more) APs with the same SSID & such that can see each other, bad things happen and they won't talk. Rumors of causing rifts in the Space-Time fabric have been floating around for a while, but I haven't personally seen it happen.
Good Luck
Scott