For what it's worth, I would just go to
Cignot your Midwest Electronic Cigarette store. and order two of the no box 510 kits. That would cost you $70 delivered and delivered fast. This way you get 4 atties 4 batteries 10 carts and two chargers. If you are really worried about batteries get the PCC or a passthrough. If you are home a lot the PT is the deal so I have heard. I have the PCC and it's nice but with four batteries I really haven't used it that much. With four full 510's and two chargers I have been totally set. it's also nice to have the four atties so I can keep a seperate one for each flavor. (I mark them with white paint so I can tell which one has what liquid in it) Remember you can always buy the eGo or Tornado (same thing) batteries later after you have saved some money and found out if the 510 is right for you. The five pack of eGo batteries is around $80. Get some liquid from either cignot or your other vender of choice. I would suggest starting with a bunch of samples or small bottles of a bunch of different stuff because I don't know anyone who was happy with all of their first liquid purchases.
Who here doesn't have a few 30ml bolttles collecting dust? (I know I should pay it forward but my taste keeps changing).
I really would suggest Cignot they are great and all of my friends who have taken the plunge agree. Two 510 kits for $70 delivered will be more than enough equipment to last for a good long while. Worry about the mods and bigger batteries and all that other stuff later.
Just my two cents but I hope it helped.
Oh and I am not connected with cignot in any other way than as a very happy customer, just like many others. They have great prices, products and their customer service is second to none.