I'm looking at filling out a dead spot near the back of my house and was wondering if there are any simultaneous dual-band routers that can act as repeaters? That is, have the 5GHz radio operate in client mode for a connection back to the main router and then the 2.4GHz radio operate in AP mode to serve the devices. Most of the repeaters that I've seen seem to use the same radio for both functions, and most of the dual band units I've seen don't seem to support this behavior (including the WRT-600N I'm currently using). I can naturally use a bridge and single-band router to do this, but I'd prefer a cleaner setup.