The Corona is a good place to start, but if you think you'll carry on, get a good radio if you can swing it, so that the next machine should be something like a Logo (which will require 120 deg swash). I learned on the simulator first, then a FP piccolo (hard sledding !) and then on to the Logo 10. By the time I got to the Logo, it was a snap, and it made me look better than I actually was.
here's my progression:
http://rceheli.com/stories/1042845958/index_html
good luck!
Dana