I really like the aspire tanks, I have a larger sub ohm one that I got for free, but I use the Nautilus tank 2, which gives you different options for coils to use, I know vaping huge clouds all day doesn't work for me, but using a higher nic juice more like I'd use a cigarette is easier. That said, things have come really far since the old days.... I'd go to a reputable e-cig store that has different options and they can show you how they work. Higher nic liquid is probably useful at first, as it will give you a more immediate nicotine punch.
I concur with everyone who says don't sweat it too much for your first set up and buy something less expensive due to the fact that over time, I'm guessing your vape preferences will change, and even if they DON'T, some makers make sure to make their set ups last approx 6 months (some of them, and KangerTech I'm calling you out, here, it seems like they have some sort of built in self-destruct sequence after 6 months, though they look and handle great in the store.... LOL, that's just me personally, some ppl swear by them, but I am clumsy.)
But, you don't want to spend too much money up front until you have things working and can buy new/crazy/expensive stuff, if that's your desire.
You might want to start with smaller bottles of diff nic strength to see which works best for you, and you might want diff strengths at different times...
Good luck! Anna