You sound like a beginner that is not sure what he really wants, and doesn't know what is out there. I would like to suggest that you visit the model flying fields, get to know the people, and if there is a club, join it. If you rush into this sport, you will have a ton of frustration and will probably drop out before you really drop in. The fact you don't know how many channels you want, and that you prefer a jet, are pretty revealing. This is not intended to be a harsh criticism, I just hope that you will avoid the many many mistakes a lot of people make when starting out. Good luck. It is a wonderful hobby.