If you are really serious about getting into the hobby then forget about electric power for now. The planes are small. fragile, underpowered, have short flight times, and can not be flown if its breezy out. The standard RC trainer has a 60 to 70 inch wing span so that you see what the plane is doing and also so that it takes more wind to flip it upside down. They are designed to use a 40 or 46 size glow engine. These engines are reasonable on fuel and have good power. Check out the link below at Tower Hobbies for a good starter set that comes with the prebuilt and covered plane, radio, servos, and engine.
http://www2.towerhobbies.com/cgi-bin...I=LXMU53**&P=M