United Hobbies carries the GWS RD8SL receiver. It's an 8-channel full range dual conversion receiver. It's also shift selectable so you can fly it with Airtronics/JR or Futaba/Tower radios. The receiver is $24.99 and the receiver crystal is $3.99. United Hobbies is located in Hong Kong, so a typical order will take about 3 weeks to arrive. What's amazing is they can ship a pair of these receivers and crystals from Hong Kong to Omaha, NE via International Air Mail for $5.00 shipping and handling.

Edit: United Hobbies ships worldwide, so make sure you're ordering the 72Mhz FM receiver and the 72Mhz FM dual conversion crystal if you live in North America. If you don't live in North America, United Hobbies also stocks receivers and crystals for 35/36Mhz and 40/41Mhz.

They charge a 3% fee for paying via PayPal to cover the cost of credit card processing. Overall I'd rate their customer service as exceptional.

http://www.unitedhobbies.com

Try not to tell anybody else about this incredible deal, or pretty soon everyone will be ordering them!