Merry Christmas
Have a look at this one:
http://cgi.ebay.com/GWS-T6A-6-Ch-FM-Transmitter-Futaba-USB-RC-Simulator_W0QQitemZ170179249329QQihZ007QQcategoryZ34056QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
or this (Australia):
http://cgi.ebay.com/R-C-GWS-RADIO-TRANSMITTER-4CH-GWT-4A-DREAM-STARTER_W0QQitemZ350009486556QQihZ022QQcategoryZ1200QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
You have to get something like this. Do a search for 'gws transmitter' and 'gws receiver' on eBay. Try to get a matching pair, both 6 channel or both 4 channel. Are you in the US, then any of the results on 72 MHz will do. For most of Europe, you need 35 MHz, Australia is on 36MHz.
Good luck!