http://cgi.ebay.com/SPEKTRUM-DX3-DSM...ayphotohosting
I just bought 1 system from ebay last week $150.... With the Spectrum system you have bind/program your receiver to your transmitter, this way the reciever will only recognize your transmitter and during that binding process you also set the failsafe servo postion.
A good/strong return spring on your carb linkage is a big help in the case of power failure