someone (maybe me ) should design a small 2.4 ghz transimmter and receiver pair simialr to the one shown above , a module similar to the xbee units , and microcontroller at both ends would allow for an almost normal 2.4 ghz system , and the signals from ps1 controllers are fairly easy to decode , so these could be used as transmitters.

in fact , i am going to have a play with something like this , ill keep you guys posted n any progress .