That is cheap! Am tempted myself!
What you get in that kit is a battery, a clearomiser, a charger and a suction cup stand (I have not got one of those so if you get it let me know if it's any good!). You will need eliquid and a spare battery and probably a spare clearo. As they're so cheap, you may as well get two of those kits as fart about finding compatible spares.
You may want a usb wall plug for charging, but you can just plug those chargers in to your computer. See how you go.
I would get a generic tobacco-flavoured eliquid, about 10ml, at first, just to see how you get on. My first bottle lasted me a week or more, but in a couple of days I knew I wanted a slightly different flavour (specifically apple!). I then filled my tank half and half baccy/apple, but now I don't bother with baccy flavour at all. I have some which I use for people who want to see what it's like to vape to have a go with.
Don't worry about all the technical stuff for the moment. You may get into it but lots of people don't.
Keep an eye on your liquid levels. You don't want to run out on a weekend like I did!
Good luck!