G'day Kendall,
If I were you, & was going to buy a new 7 channel radio, I would go for the Spektrum DX7,
Similar price to the JR, & be aware, when you buy a radio set, everything come's with it, Transmitter, receiver, batteries, servos, switch & charger.
The JR 2720, has a synthesized TX & RX, so you don't need crystals.
Check out the Spektrum here. http://www.spektrumrc.com/
Check out JR here, http://modelflight.com.au/
They are both available at Modelflight in Adelaide South Australia, they are the importers,
right at your doorstep.