Flying airplanes and flying heli's are completely different skills... So like D.O.G. ... I'd strongly recommend starting with practicing using a simulator since it will easily pay for itself in the fewer crashes you'll see when actually flying an actual RC heli... While it isn't the best analogy, it's often said that flying a heli is a little like trying to control a spinning marble ( ball bearing or whatever ) on a pane of glass, it's never stable and you are always correcting for everything so it doesn't fall out of the sky.
On the setup side for the electronics and hardware... it is more complex as you mentioned. It's also different on each model, each radio and other electronics that you've chosen. Still, the basic ideas are similar enough that setup instructions and video's from other setups can still be of use. So when looking for assistance you will need to be specific about everything you are using... what exact make/model of aircraft, of radio, of receiver for that radio... if it's a flybar or flybarless setup and even to some extent what servos you may be using. It will be unlikely that you will find someone else using the exact same setups... but you can still use the info they pass on since they still work in similar manners even if they may use slightly different terminology.