disabling the wifi broadcasting as opposed to blocking users
Tikker is correct - I am looking for a solution to turn off the wifi radio transmission based on a schedule, and possibly with a button.
The trick is that when the wifi is off, I'd still like the wired ports to be providing Internet access. This is why options that shut off the router completely are not ideal. I already have that now with the simple timer on my Linksys WRT54G but that of course kills the wired ports as well.
I'm going to look into the ASUS N66 johnnyCanuck suggests.