RE: Stunts
I found that this website is a good place to start [link=http://www.masportaviator.com/fh_advancedtraining.asp]Sport Aviator's Advanced Training[/link]. I am currently working on the rudder training to get my self ready for some advanced 3d stuff.
I also got one of my instructors to talk me through some stunts and ensure that my aircraft was capable of it.
Hope this helps
Cheers Pups