Dave, I think a basic radio system is the best place to start. A simple four channel, or the Spektrum DX5e, is perfect for learning to fly.

The DX5e is compatible with RealFlight G5 http://www3.towerhobbies.com/cgi-bin...?&I=LXYCX1&P=0
and Hangar 9 FS One http://www.horizonhobby.com/Products...rodID=HANS3000
Others are probably also compatible.

Contrary to many, I do not buy in to the "Once you get a second plane, the money spent for the simple radio was wasted" line.
Even if a person decides they need a $2500 monster radio for plane number 2, they can keep number 1 intact and enjoy it for a long time.

You do not need multiple model memory, exponential, or other features at this time. Concentrate on learning to fly first; then agonize over which radio to get for the next plane.