One other thing to contend with: some devices (like the WAP200) can not also provide client AP services when running in bridge mode. Not sure what that Buffalo unit can do in that respect.
I've never used a repeater in practice but in a fixed location, it will probably be the easiest way out. (The bridges I have set up so far were in situations where mobility was needed for devices without wireless and a USB dongle was not possible.) A repeater would add an extra wireless hop and so introduces some extra latency.
If running wire is an option, they that would be the most flexible way out. I.e. add regular APs with the desired radios in the satellite locations and give them all the same SSID.