StoneDeaf,

Flight packs are the receiver, crystal, battery switch harness and servos

For electrics simetimes a speed controller is subistuted for one othe the servos.

Go find out what radio brands are most popular and which channel(s) are the least crowded at the club you plan on flying at It will greatly help in the long run.

BTW my experience has been that starting out with the a cheap for 4 ch radio and trading up when your ready doesn't cost any more then buying a more expensive radio and an extra flight park. And you get a "spare transmitter" to boot.