Hi there, im trying to find away to extend the range of my wireless - to all areas of my house; and theres no way i can do this, other than to use some sort of units. At the moment i've covered all the areas which i can with network cable and hardwired, wireless repeaters, but its just not far enough. (items like this: repeater) Now im wondering if i can extend it any other way, i.e. a single unit that just repeats the signal without any use of network cables - with my existing hardware. My router My repeater Would airport express do the job?