Andermac,
I think you are looking at doing this on a budget. Its the same way I have been doing it. Now if you want a cheap radio to use with both planes this is the way to go (on a small budget)
http://www3.towerhobbies.com/cgi-bin...I=LXLDP9**&P=0 $110.00 This is the Futaba radio with a tower hobby sticker.
http://www3.towerhobbies.com/cgi-bin...I=LXRXF3**&P=0
The radio come with Transmitter and tranmitter battery, receiver and receiver battery, and a wall charger that charges both batterys. And a switch and a extention wire that will be needed for ailerons.
There are alot of fancy radios out there. But I have looked into my needs for today and a little down the road. This radio will work great for 4 servo planes, or 5 servo planes, planes with flaps and retracts. It also has mixes for V-Tail and Flaperon (which neither one of us will be using for a long while).