Which receiver are you using? Also is there any particular reason why you are not using the flysky stuff, or do you just want to upgrade?
The setup can be fairly simple or extremely complex depending on what features you want to use. I find that this YouTube playlist covers pretty much everything you need to know when it comes to playing tlwith your taranis:
Introduction to the FrSky Taranis Radio/OpenTX: http://www.youtube.com/playlist?list=PLYsWjANuAm4rtLZuLU2eSTc3svqWx-pa1
However if you have any specific questions just let me know.
My general advise is to use ppm so you have more spare UART ports for later, and then it’s also a nice idea to use telemetry for low voltage and easier info in your taranis, but this depends on what receiver you are using.