I think you should at least have a base understanding of RBAs, what products are out, the basic concepts etc etc before just diving in. I mean sure, I can tell you exactly what to get, Roxy pointed you in a great direction but its more FUN and BETTER FOR YOU if you do research and watch videos. You should be abel to know at least what you want to buy, to many people IMHO want to jump into RDAs and they cant even name a few drippers or tell me about batteries.
First, read all blogs by Baditude about batteries EVEN if you do not currently use them due to having an istick. Second, youtube has some GREAT videos that will get you into the world of dripping. Lastly though my friend, if you use a regulated mod you will get a better vape (IMO) with a .8-1.5ohm coil then an extremely super sub ohm coil like a .25ohm one. You can create clouds the same size with a higher ohm coil on a regulated mod as you can with a lower ohm one. I was using my Dark Horse RDA with a .9ohm coil today at the vape store and the production was better then my friend running the same atty at a .3ohm on the same box. My coil had more wick to wire which is good. Have fun my friend, this is fun.