I've tried e-cigs in the past from companies like totally wicked that, due to quality or lack thereof, pushed me back towards analogs. I wanted to get back to vaping and put the analogs down for good, but I always seemed to have a reason to put it on the backburner. That was until my son was born. Now I'll spend as much as I have to to ensure I stay off analogs permanently!
I began doing a lot of research here on this very site into the different product lines, mods, juices, tanks etc. This place is a wealth of information that you can never stop learning from. Youtube is also a great source.
I now own a provari, 2 silver bullets, and I just purchased 4 ego twist batteries at 1000mah so I can be a bit more mobile. Also, I always wanted to have a backup on hand, and you'll learn that backups for backups is better than not having backups as all. Again, anything to keep you away from analogs.
The main thing is not to allow yourself to get frustrated, as easy as that may sound. Read, watch videos, ask questions and soon you'll get the idea of what's what. The Ego twist would be a terrific starting point, and as your experience/knowledge increases, you can experiment with other mods to fit what works best for you and your lifestyle.
Good luck!