FMS is the way to go to learn your basic reactions and save money for your airplane. It's nothing fancy but gets the job done well. If your into computer graphics and realism, and have the bucks, go with a simulator you have to pay for. You can also get a cable here:
http://fms1.mattclement.com/
That you can use with your real transmitter that will work with FMS. Before you by a cable though, make darn sure of the Tx connection as well as compadibility with your computer's operating system. A lot of trainees in our area have started out this way, and it makes all the difference in the world when it comes to real flying day!

BTW, FMS will also work fine with a simple joystick if you have one. Even though the "feel" is different than an R/C Tx, the directional control in your brain is the same as flying with a Mode 2 Tx and even this is a good start to get used to the airplane flying towards you...the cool part is that if you have a joystick, you can download FMS and be flying in several minutes