Before you go out and spend all kind of money, I suggest that first you should join your local flying club, gather up all the information regarding flying instructions. Speak to your chief instructor regarding trainers and radios, buddy boxes etc.... you should also go to the flying field where you can find out more from other students. Most every beginner has their favorite trainer, all trainers look very similar but not all of them have the same flying characteristics. The Goldberg Eagle II is a very good trainer with an O.S. 46FX, in the past you had to build this trainer but now you can buy it as an ARF, you can't go wrong with this trainer. Building takes longer time, good for the long winter months. Regarding the radio get the 6 ch./comp. as was recommended.
Good luck
Garthwood