I'm another satisfied Turnigy 9x user. I've had mine for about 8 trouble-free months. I got it because it's cheap and popular. You get Turnigy equipment from Hobby King, a Chinese online vendor. It comes with a 9 channel receiver that's also cheap (you'll buy more receivers as you build more planes). There are a few transmitters you can buy that are less expensive, but, in my judgement, not as good. The 9x gives a lot of "bang for the buck". An attractive feature of the 9x is that the firmware can be upgraded to a level exceeding that of some of the most capable and expensive transmitters. The most popular firmware upgrades are "Er9x" and "OpenTx", which have already been mentioned. Both are free, non-commercial, open source efforts maintained by some intelligent and devoted hobbyists from around the world.
The stock 9x documentation is a translated PDF file you can download online and is not very useful for learning how to use the transmitter. You'll be able to gather enough information from You Tube videos to figure out how to set up the 9x. The docs for the upgraded firmware versions are much better.
I recommend the Turnigy 9x and the newest, 9xR transmitters.
F-35 V2 - Fun & Done, J-20 - Fun & Done, plans reprinted, Cheap-N-Easy - Fun, Done & Salvaged Parts, F-18 V3 - No fun - All done, JXD-385 - Fun Super-Mini Quad, Sci-Fi Jet (Mikey's RC Twin EDF) - Treed - Salvaged parts, Alpha Jet (FRCFOAMIES) - Treed - Salvaged parts, Bixler 2 - Flies nice, Alpha Jet MkII (FRCFOAMIES) - Easy flier, Mig-29 V2 - Scary, parked, Yf-23 V2 (Five Easy Pieces) - In Progress, Slowly (Christian Huber, Germany) - Slow softie, Y600 Tricopter - Stalled, - Plans Printed, F-35 V3 SU-37 Mk2 (FRCFOAMIES) - Plans Printed, Turnigy 9X - OpenTx firmware, Ikarus AeroFly Deluxe Premium Flight Simulator for Macintosh + Ikarus wireless line converter - Awesome!