Not to make waves here, but me, personally, I wouldn't get a bunch of extra batteries unless I got the kit first and was sure I liked it. I remember from your previous post that cost is an issue. You don't absolutely have to have extra batteries. If you are going to be going to work and be without access to a computer or an outlet, then a portable charging case, or extra batteries would be a good idea. I also remember from your previous post you smoked lights before and have been using chewing tobacco or something and have been away from inhaling your nicotine for awhile, so you may not be vaping all that much at first. I'd just stick with the starter kit for now, but keep that credit card handy in case you do need the extra batteries. It's not a bad idea, I'd just start out slow, judging from your previous posts. Get the feel for it before you go ordering a bunch of extra stuff. It sounds like you were headed in the right direction, so as not to further complicate things, I'd say go ahead with your order, sounds good to me. But keep in mind that if you don't like the flavor of the juice, there are THOUSANDS of flavors out there. If the 510 doesn't work for you, there are many, many different models of e-cigs out there. You are getting your 510 from the right place, the price is great, cignot is great, and it's genuine Joye. Go for it!
I'm not at all saying that any of the advice in these replies is bad. It's all good advice, but as I recall you were getting a little overwhelmed before.. a little bit of 'input overload'... you are on the right track IMHO.. good luck!