http://www.rc-car-online.de/3pk_2.4_modulset.jpghttp://www.rc-car-online.de/3pk_2.4_modulset.jpg

For the people that alredy have a Robbe/Hitec/JR set with interchangable RF module, this might be a nice solution too.

http://www.xtremepowersystems.net/xtremelink.phphttp://www.xtremepowersystems.net/xtremelink.php