For the poor soul with the CE4's: Look into Kanger products (originvape.com or myvaporstore.com) - most of these are beginner-friendly and most can be rebuilt if you get to the point where you are ready to try wrapping your own coils. Meaning: you can take the replaceable 'heads' apart to put in a new wick - which feeds the juice - and coil- the wire wrapped around the wick that heats up and vaporises the juice.
Good luck on your journey! I will second the above notion that it is actually easier than it looks right now.