Hi, its so confusing!!
Ok this is what I would get if I was going to be starting again.
I would get the starter kit of your choice. Then get cartomizers, for me when I started this is less of a hassle that cartridges and an atomizer. I would get the regular ones.
Then you need to get the liquid, menthol and then whatever flavor you want, but get small bottles, you seriously just don't know what is going to taste good to you and you don't want to end up with juice you don't like.
MG....I started at 18 and I smoked 1 and 1/2 packs a day of marlboro medium 100's, I had no problems with this.
For starters that is all you need.
You will have a better idea of what you want your next order to be after you do this a bit.
I have not heard good or bad about cignot, but I would go to vaporgalaxy.com and order from Luke if you can.
Good Luck!