http://www.realflight.com/swap/index.html

I have had best results with using the Extra 330S as a beginning platform for 3D mods, if you have the addons 4 disk, download the Freestyle (SD) version of it from the swap page, this is an excellent start. Then tune it to suit your needs, I have 4 varients of this aircraft I regularly fly, each of them set up to fly a little different style of 3D... great plane. The stock Extra 330S 3D is what I used as my "hovering" sharpener and works quite well. The Edge is also a great plane to start with.

Have fun!