This is a tank and mod:
http://vapenw.com/alien-220w-mod-by-smok
For that you'd need 18650 batteries and a charger.
Samsung 25R or 30Q
LG HE2 or HE4
Sony VTC4 or VTC5
All good battery choices.
Nitecore D4
Xtar VC4
Edfest LUC Blu6
All good charger options.
http://vapingunderground.com/threads/vendors-that-ship-from-usa.266680/
Vendors that ship from the USA
As far as settings;
Ohms, you'll only adjust this by wrapping your own coils.
As a new vaper you may not get into this, it is normally for more advanced vapers.
However that isn't a requirement.
Even new users can do this, just requires research or someone to teach you how.
For a tank that uses stock coils (like the one that comes in the kit I posted in the first link) the wattage is printed on the coil so there isn't much guess work to do.
The print will provide you with a range and all you do is choose a wattage within that range.
Granted this is simply the recommended setting, you could go slightly outside of it if it provides you a better vape.
Just thoughts for you to consider......