try saving the following applescript as an application, and then making a trigger to launch it.
-- > -- Toggle Airport Power On and Off > -- > if (offset of "On" in (do shell script "networksetup -getairportpower > en1")) > 0 then > do shell script "networksetup -setairportpower en1 off" > else > do shell script "networksetup -setairportpower en1 on" > end if > works for me on snow leopard.
