If you have heli's already do you have a TX and batteries you can use and do you want electric or IC.
Also are you going to be self taught or have someone to help and do you have some Simulator experience for fixed wing ???
Personally i you're at the begimmers stage wit planes I'd go for a foam electric like the Multiplex Easy Star especially of you're going to use your TX but if you've a heap of Heli and Sim time maybe the Multiplex MiniMag.